From Joseph.Butler at nottingham.ac.uk  Thu May  1 15:05:53 2025
From: Joseph.Butler at nottingham.ac.uk (Joseph Butler)
Date: Thu, 1 May 2025 14:05:53 +0000
Subject: [Astro] [CAPT] Harry's Viva Meal
In-Reply-To: <67E934F4-66DF-4B39-A02E-43867303DF0F@nottingham.ac.uk>
References: <67E934F4-66DF-4B39-A02E-43867303DF0F@nottingham.ac.uk>
Message-ID: <F671B393-A408-461D-B8E1-A34959AC3E97@nottingham.ac.uk>

Hi all,

Reminder to sign up for this!

Joe

On 23 Apr 2025, at 16:10, Joseph Butler <ppxjb4 at exmail.nottingham.ac.uk> wrote:

Hi all,

Harry?s viva date has been set for Friday 9th May, so we will be going out to tamatanga<https://tamatanga.com/>, an Indian restaurant in Nottingham city centre! Please fill out this form to let me know if you?d like to join: https://forms.gle/SzVaMLndCLU4aAJfA.

No deposit is required, and meals do not need to be chosen in advance. However, I do need to provide the restaurant with exact numbers a few days beforehand, so the deadline for signup is Tuesday 6th May - if you find you can no longer attend after filling out the form, then please let me know ASAP. The table is booked from 6:45pm.

TL;DR: Meal at tamatanga at 6:45pm on Friday 9th May, sign up by Tuesday 6th May.

Thanks,
Joe

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From Elisa.Todarello at nottingham.ac.uk  Thu May  1 16:49:40 2025
From: Elisa.Todarello at nottingham.ac.uk (Elisa Todarello)
Date: Thu, 1 May 2025 15:49:40 +0000
Subject: [Astro] [CAPT] Particle Cosmology & Gravity Seminar next week:
 Ameek Malhotra from Swansea University
Message-ID: <PAXPR06MB8421A6A1CD7A9863C3373E83DF822@PAXPR06MB8421.eurprd06.prod.outlook.com>

Dear All,

                  We have a seminar next week whose details are provided below -

-----------------------------------------

Speaker: Ameek Malhotra (Swansea University)

Seminar date: May 6th, Tuesday, 1 pm UK time

Venue: Seminar Room A 113 (Cripps North Building, CAPT)


Title: Bayesian Optimisation for efficient cosmological model selection


Abstract:  Cosmological model selection, in the framework of Bayesian inference requires the calculation of the Bayesian evidence. This can often be quite challenging, especially if the underlying likelihood function is expensive to evaluate. I will show how a technique called Bayesian Optimisation, based on Gaussian Process regression, can be used to calculate this evidence in far fewer likelihood evaluations, offering a much more efficient approach compared to traditional methods. If time permits, I will also discuss another ongoing project related to the reconstruction of the primordial curvature power spectrum and the equation of state from scalar induced gravitational waves.


--------------------------------------------------

Link to join:

 https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d


List of upcoming Seminars:

13th May: David Trestini (Southampton)
22nd May: Diederik Roest (Groningen)
12th June: Isobel Romero (Cambridge)
19th June: Rachel Gray (Glasgow)
----------------------------------------------------------------------

With Regards,
-Elisa & Swagat


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From ppyaf2 at nottingham.ac.uk  Fri May  2 16:06:33 2025
From: ppyaf2 at nottingham.ac.uk (Adela Fernandez)
Date: Fri, 2 May 2025 15:06:33 +0000
Subject: [Astro] [CAPT] Cake Friday!
Message-ID: <DU0PR06MB8429C35870B887E81AD1D130958D2@DU0PR06MB8429.eurprd06.prod.outlook.com>

Chocolate chip* hot cross buns in the foyer - both non vegan and vegan versions.

*please note these were baked on the hottest day of the year

Adela :)
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From Ella.Batchelor at nottingham.ac.uk  Tue May  6 08:18:09 2025
From: Ella.Batchelor at nottingham.ac.uk (Ella Batchelor)
Date: Tue, 6 May 2025 07:18:09 +0000
Subject: [Astro] [CAPT] CAPT Weekly Bulletin (w/c 05-05-25)
Message-ID: <AM6PR06MB42644CB578B12A553995A4AD95892@AM6PR06MB4264.eurprd06.prod.outlook.com>

Tuesdays at 11am, CAPT Foyer ? Astro Coffee



Tuesday 6th May at 11.30am, A113 CAPT ? Astronomy Journal Club



Tuesday 6th May at 1pm, A113 CAPT ? Particle Cosmology and Gravity Seminar
Ameek Malhotra (Swansea)

Bayesian Optimisation for efficient cosmological model selection



Cosmological model selection, in the framework of Bayesian inference requires the calculation of the Bayesian evidence. This can often be quite challenging, especially if the underlying likelihood function is expensive to evaluate. I will show how a technique called Bayesian Optimisation, based on Gaussian Process regression, can be used to calculate this evidence in far fewer likelihood evaluations, offering a much more efficient approach compared to traditional methods. If time permits, I will also discuss another ongoing project related to the reconstruction of the primordial curvature power spectrum and the equation of state from scalar induced gravitational waves.


Link to join: https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d
---

Wednesday 7th May at 3.45pm, C4 Physics ? Astronomy Weekly Seminar

Prof Jim Dunlop (Edinburgh)

Charting early galaxy formation and growth with JWST and ALMA


The James Webb Space Telescope (JWST) is transforming our view of galaxy formation and evolution in the young Universe. I will provide an overview of the latest results from the PRIMER survey, the largest JWST Cycle-1 ?Galaxies? programme which, in combination with other public JWST imaging, is now enabling us to chart the emergence of the galaxy population back to within ~300 million years of the Big Bang. Specifically, I will present and discuss the first robust determination of the evolving UV galaxy luminosity function extending out to redshifts z~13, as well as new measurements of the galaxy stellar mass function reaching out to z~9. I will then interpret these results in the context of our current understanding of the evolving dark matter halo mass function and the efficiency with which galaxies are able to convert their baryons into stars. Finally, I will discuss new results on the early growth of dust-enshrouded star formation, and the prospects for future progress exploiting the combined power of JWST and the Atacama Large Millimeter Array (ALMA).
---

Thursday 8th May at 1pm, C14 Physics ? Astronomy Lunch Talk

Rhys Jordan

Identifying group galaxies merging with massive clusters using machine learning


The environment plays a critical role in shaping galaxy evolution. Galaxy clusters and their surroundings offer diverse conditions that influence galaxies before they reach the dense cluster core, known as ?pre-processing?. However, robustly identifying environmental substructures, particularly galaxy groups in the infall regions, remains a significant challenge. Traditional phase space clustering methods struggle in these transitional zones due to severe projection effects and finger-of-god (FoG) distortions, precisely where distinguishing between local and global environments is most important. In this talk, I will present a supervised machine-learning framework for identifying group galaxies in and around clusters using projected positions and radial velocities. Our model trains on mock observations derived from cosmological simulations tailored to match survey conditions. It classifies galaxies into three environmental categories: main cluster, group, and neither (field). The model achieves an overall accuracy of 75% and a class-weighted precision of 81%. The main cluster class is most successfully recovered with a recall of 84%, followed by the group (77%) and neither (70%) classes. Model performance for group classification is notably suppressed within 1xR200. However, resampling strategies allow users to tune the model for precision or recall, depending on their scientific goals. The model remains unbiased across various cluster masses and dynamical states. Our method is flexible, observationally motivated, and well-suited for upcoming spectroscopic surveys. It provides a promising avenue for disentangling environmental influences on galaxy evolution across large-scale structures.


Thursday 8th May at 3pm, A113 CAPT ? Particle Cosmology Journal Club

Fridays at 4pm, CAPT Foyer ? CAPT Cakes
---
If you have any events/visitors you would like included in next week?s bulletin, please let me know.



Best wishes

Ella

Ella Batchelor (she/her)
Administrator

School of Physics & Astronomy

University of Nottingham
A112a Centre for Astronomy & Particle Theory
University Park
Nottingham, NG7 2RD

+44 (0) 115 74 86778 |  nottingham.ac.uk<http://nottingham.ac.uk/>

[cid:image001.png at 01DBBE5D.7E07D4C0]

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From Luke.Conaboy at nottingham.ac.uk  Tue May  6 08:36:17 2025
From: Luke.Conaboy at nottingham.ac.uk (Luke Conaboy)
Date: Tue, 6 May 2025 07:36:17 +0000
Subject: [Astro] [CAPT] Astro seminar Wed 7th May 15:45 C4 -- Jim Dunlop
 (Edinburgh)
Message-ID: <C8516B95-3CD1-42E8-B508-2B7D1EBA7543@nottingham.ac.uk>

Hi all,

this week our seminar is given by Jim Dunlop (Edinburgh), talking about early galaxy formation and growth. The seminar will be in C4.

Post-seminar refreshments will be wine and cheese.

Timings are as usual:

- lunch at Lakeside, leaving CAPT ~13:00 (subsidised for a limited number of students -- let me know before the end of the day tomorrow)
- meet the speaker for postgrads at 15:00, finishing at 15:30
- seminar at 15:45 in C5/C4
- post-seminar wine and cheese at 16:45

This seminar will be conducted in person only.

Best,
Jesse and Luke

== 

Charting early galaxy formation and growth with JWST and ALMA

The James Webb Space Telescope (JWST) is transforming our view of galaxy formation and evolution in the young Universe. I will provide an overview of the latest results from the PRIMER survey, the largest JWST Cycle-1 ?Galaxies? programme which, in combination with other public JWST imaging, is now enabling us to chart the emergence of the galaxy population back to within ~300 million years of the Big Bang. Specifically, I will present and discuss the first robust determination of the evolving UV galaxy luminosity function extending out to redshifts z~13, as well as new measurements of the galaxy stellar mass function reaching out to z~9. I will then interpret these results in the context of our current understanding of the evolving dark matter halo mass function and the efficiency with which galaxies are able to convert their baryons into stars. Finally, I will discuss new results on the early growth of dust-enshrouded star formation, and the prospects for future progress exploiting the combined power of JWST and the Atacama Large Millimeter Array (ALMA).

_______________________________________________
CAPT mailing list
CAPT at lists.nottingham.ac.uk
https://lists.nottingham.ac.uk/mailman/listinfo/capt

From Joseph.Butler at nottingham.ac.uk  Tue May  6 14:50:01 2025
From: Joseph.Butler at nottingham.ac.uk (Joseph Butler)
Date: Tue, 6 May 2025 13:50:01 +0000
Subject: [Astro] Lunch Talk (in C14) - 8/5/25
Message-ID: <AAD6F74D-9EBE-4877-9E49-5AD929E66B5B@nottingham.ac.uk>

Hi everyone,

The first lunch talk of this term will be given by Rhys, at 1pm Thursday in C14 (main physics building) - note the room change! Title and abstract are below.

TITLE: Identifying group galaxies merging with massive clusters using machine learning.

ABSTRACT: The environment plays a critical role in shaping galaxy evolution. Galaxy clusters and their surroundings offer diverse conditions that influence galaxies before they reach the dense cluster core, known as ?pre-processing?. However, robustly identifying environmental substructures, particularly galaxy groups in the infall regions, remains a significant challenge. Traditional phase space clustering methods struggle in these transitional zones due to severe projection effects and finger-of-god (FoG) distortions, precisely where distinguishing between local and global environments is most important. In this talk, I will present a supervised machine-learning framework for identifying group galaxies in and around clusters using projected positions and radial velocities. Our model trains on mock observations derived from cosmological simulations tailored to match survey conditions. It classifies galaxies into three environmental categories: main cluster, group, and neither (field). The model achieves an overall accuracy of 75% and a class-weighted precision of 81%. The main cluster class is most successfully recovered with a recall of 84%, followed by the group (77%) and neither (70%) classes. Model performance for group classification is notably suppressed within 1xR200. However, resampling strategies allow users to tune the model for precision or recall, depending on their scientific goals. The model remains unbiased across various cluster masses and dynamical states. Our method is flexible, observationally motivated, and well-suited for upcoming spectroscopic surveys. It provides a promising avenue for disentangling environmental influences on galaxy evolution across large-scale structures.

Thanks,
Joe
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From Omar.Almaini at nottingham.ac.uk  Tue May  6 15:36:33 2025
From: Omar.Almaini at nottingham.ac.uk (Omar Almaini)
Date: Tue, 6 May 2025 14:36:33 +0000
Subject: [Astro] [CAPT] Astro seminar Wed 7th May 15:45 C4 -- Jim Dunlop
 (Edinburgh)
In-Reply-To: <C8516B95-3CD1-42E8-B508-2B7D1EBA7543@nottingham.ac.uk>
References: <C8516B95-3CD1-42E8-B508-2B7D1EBA7543@nottingham.ac.uk>
Message-ID: <F416540B-09C6-4B5A-AD0B-1954CE4F5118@nottingham.ac.uk>

Hi everyone

We plan to take Jim out for a meal tomorrow evening. The venue hasn?t been decided, but please let me know if you are interested in coming. We will finalise the details tomorrow.

Cheers

Omar

> On 6 May 2025, at 08:36, Luke Conaboy <Luke.Conaboy at nottingham.ac.uk> wrote:
> 
> Hi all,
> 
> this week our seminar is given by Jim Dunlop (Edinburgh), talking about early galaxy formation and growth. The seminar will be in C4.
> 
> Post-seminar refreshments will be wine and cheese.
> 
> Timings are as usual:
> 
> - lunch at Lakeside, leaving CAPT ~13:00 (subsidised for a limited number of students -- let me know before the end of the day tomorrow)
> - meet the speaker for postgrads at 15:00, finishing at 15:30
> - seminar at 15:45 in C5/C4
> - post-seminar wine and cheese at 16:45
> 
> This seminar will be conducted in person only.
> 
> Best,
> Jesse and Luke
> 
> == 
> 
> Charting early galaxy formation and growth with JWST and ALMA
> 
> The James Webb Space Telescope (JWST) is transforming our view of galaxy formation and evolution in the young Universe. I will provide an overview of the latest results from the PRIMER survey, the largest JWST Cycle-1 ?Galaxies? programme which, in combination with other public JWST imaging, is now enabling us to chart the emergence of the galaxy population back to within ~300 million years of the Big Bang. Specifically, I will present and discuss the first robust determination of the evolving UV galaxy luminosity function extending out to redshifts z~13, as well as new measurements of the galaxy stellar mass function reaching out to z~9. I will then interpret these results in the context of our current understanding of the evolving dark matter halo mass function and the efficiency with which galaxies are able to convert their baryons into stars. Finally, I will discuss new results on the early growth of dust-enshrouded star formation, and the prospects for future progress exploiting the combined power of JWST and the Atacama Large Millimeter Array (ALMA).
> 
> _______________________________________________
> CAPT mailing list
> CAPT at lists.nottingham.ac.uk
> https://lists.nottingham.ac.uk/mailman/listinfo/capt
> -- 
> Astro mailing list
> Astro at lists.nottingham.ac.uk
> https://lists.nottingham.ac.uk/mailman/listinfo/astro


From Luke.Conaboy at nottingham.ac.uk  Wed May  7 10:49:10 2025
From: Luke.Conaboy at nottingham.ac.uk (Luke Conaboy)
Date: Wed, 7 May 2025 09:49:10 +0000
Subject: [Astro] [CAPT] Astro seminar Wed 7th May 15:45 C4 -- Jim Dunlop
 (Edinburgh)
In-Reply-To: <C8516B95-3CD1-42E8-B508-2B7D1EBA7543@nottingham.ac.uk>
References: <C8516B95-3CD1-42E8-B508-2B7D1EBA7543@nottingham.ac.uk>
Message-ID: <9A17EB8D-DFA5-4ED2-AD3D-4719DB88C68E@nottingham.ac.uk>

Reminder for our seminar today! Still spaces if any postgrads (or postdocs/faculty) want to join for lunch, we'll leave around 1.

> On 6 May 2025, at 08:36, Luke Conaboy (staff) <ppzlc1 at exmail.nottingham.ac.uk> wrote:
> 
> Hi all,
> 
> this week our seminar is given by Jim Dunlop (Edinburgh), talking about early galaxy formation and growth. The seminar will be in C4.
> 
> Post-seminar refreshments will be wine and cheese.
> 
> Timings are as usual:
> 
> - lunch at Lakeside, leaving CAPT ~13:00 (subsidised for a limited number of students -- let me know before the end of the day tomorrow)
> - meet the speaker for postgrads at 15:00, finishing at 15:30
> - seminar at 15:45 in C5/C4
> - post-seminar wine and cheese at 16:45
> 
> This seminar will be conducted in person only.
> 
> Best,
> Jesse and Luke
> 
> == 
> 
> Charting early galaxy formation and growth with JWST and ALMA
> 
> The James Webb Space Telescope (JWST) is transforming our view of galaxy formation and evolution in the young Universe. I will provide an overview of the latest results from the PRIMER survey, the largest JWST Cycle-1 ?Galaxies? programme which, in combination with other public JWST imaging, is now enabling us to chart the emergence of the galaxy population back to within ~300 million years of the Big Bang. Specifically, I will present and discuss the first robust determination of the evolving UV galaxy luminosity function extending out to redshifts z~13, as well as new measurements of the galaxy stellar mass function reaching out to z~9. I will then interpret these results in the context of our current understanding of the evolving dark matter halo mass function and the efficiency with which galaxies are able to convert their baryons into stars. Finally, I will discuss new results on the early growth of dust-enshrouded star formation, and the prospects for future progress exploiting the combined power of JWST and the Atacama Large Millimeter Array (ALMA).
> 

_______________________________________________
CAPT mailing list
CAPT at lists.nottingham.ac.uk
https://lists.nottingham.ac.uk/mailman/listinfo/capt

From Joseph.Butler at nottingham.ac.uk  Thu May  8 09:00:00 2025
From: Joseph.Butler at nottingham.ac.uk (Joseph Butler)
Date: Thu, 8 May 2025 08:00:00 +0000
Subject: [Astro] Lunch Talk (in C14) - 8/5/25
In-Reply-To: <AAD6F74D-9EBE-4877-9E49-5AD929E66B5B@nottingham.ac.uk>
References: <AAD6F74D-9EBE-4877-9E49-5AD929E66B5B@nottingham.ac.uk>
Message-ID: <PAWPR06MB89914F52658FC11794ED9CA79D88A@PAWPR06MB8991.eurprd06.prod.outlook.com>

Reminder of the lunch talk today at 1pm in C14!

Joe
________________________________
From: Joseph Butler <ppxjb4 at exmail.nottingham.ac.uk>
Sent: Tuesday, May 6, 2025 2:49:51 PM
To: astro at nottingham.ac.uk <astro at nottingham.ac.uk>
Subject: Lunch Talk (in C14) - 8/5/25

Hi everyone,

The first lunch talk of this term will be given by Rhys, at 1pm Thursday in C14 (main physics building) - note the room change! Title and abstract are below.

TITLE: Identifying group galaxies merging with massive clusters using machine learning.

ABSTRACT: The environment plays a critical role in shaping galaxy evolution. Galaxy clusters and their surroundings offer diverse conditions that influence galaxies before they reach the dense cluster core, known as ?pre-processing?. However, robustly identifying environmental substructures, particularly galaxy groups in the infall regions, remains a significant challenge. Traditional phase space clustering methods struggle in these transitional zones due to severe projection effects and finger-of-god (FoG) distortions, precisely where distinguishing between local and global environments is most important. In this talk, I will present a supervised machine-learning framework for identifying group galaxies in and around clusters using projected positions and radial velocities. Our model trains on mock observations derived from cosmological simulations tailored to match survey conditions. It classifies galaxies into three environmental categories: main cluster, group, and neither (field). The model achieves an overall accuracy of 75% and a class-weighted precision of 81%. The main cluster class is most successfully recovered with a recall of 84%, followed by the group (77%) and neither (70%) classes. Model performance for group classification is notably suppressed within 1xR200. However, resampling strategies allow users to tune the model for precision or recall, depending on their scientific goals. The model remains unbiased across various cluster masses and dynamical states. Our method is flexible, observationally motivated, and well-suited for upcoming spectroscopic surveys. It provides a promising avenue for disentangling environmental influences on galaxy evolution across large-scale structures.

Thanks,
Joe
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From Nina.Hatch at nottingham.ac.uk  Fri May  9 13:37:52 2025
From: Nina.Hatch at nottingham.ac.uk (Nina Hatch)
Date: Fri, 9 May 2025 12:37:52 +0000
Subject: [Astro] [CAPT] Harry has passed his viva
Message-ID: <62CBD290-042B-438C-8A07-7668602F42B3@exmail.nottingham.ac.uk>

Please come and celebrate with us.
Nina
_______________________________________________
CAPT mailing list
CAPT at lists.nottingham.ac.uk
https://lists.nottingham.ac.uk/mailman/listinfo/capt

From Alfonso.Aragon at nottingham.ac.uk  Fri May  9 16:00:21 2025
From: Alfonso.Aragon at nottingham.ac.uk (Alfonso Aragon-Salamanca)
Date: Fri, 9 May 2025 15:00:21 +0000
Subject: [Astro] [CAPT] Cake!
Message-ID: <AM6PR06MB51124216D69A631EAFA55445A38AA@AM6PR06MB5112.eurprd06.prod.outlook.com>

Hi all,

Come and have some chocolate, orange, and almond cake - gluten free, not vegan (contains eggs), contains almonds.

Ingredients: whole oranges, eggs, baking powder, bicarbonate of soda, almonds, sugar, cocoa.

Alfonso


Alfonso Arag?n-Salamanca
Professor of Astronomy

School of Physics and Astronomy
University of Nottingham
Room B106b, Centre for Astronomy and Particle Theory
University Park
Nottingham, NG7 2RD, UK

+44 (0) 115 95 16230 | alfonso.aragon at nottingham.ac.uk<mailto:alfonso.aragon at nottingham.ac.uk>
URL: http://nottingham.ac.uk/physics/people/alfonso.aragon
General teaching enquiries physics-teaching at nottingham.ac.uk<mailto:physics-teaching at nottingham.ac.uk>

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From Elisa.Todarello at nottingham.ac.uk  Mon May 12 08:00:00 2025
From: Elisa.Todarello at nottingham.ac.uk (Elisa Todarello)
Date: Mon, 12 May 2025 07:00:00 +0000
Subject: [Astro] [CAPT] Particle Cosmology & Gravity Seminar this week:
 David Trestini (Southampton)
Message-ID: <PAXPR06MB8421A673AD2548E72174B4C8DF94A@PAXPR06MB8421.eurprd06.prod.outlook.com>

Dear All,

                  We have a seminar next week whose details are provided below -

-----------------------------------------

Speaker: David Trestini (Southampton)

Seminar date: May 13th, Tuesday, 1 pm UK time

Venue: Seminar Room A 113 (Cripps North Building, CAPT)


Title: Modelling gravitational waves from compact binaries in scalar tensor theories within the post-Newtonian approximation


Abstract:  The post-Newtonian approximation, which assumes that the orbital velocity of a compact binary is small, has been very successful in obtaining analytical waveforms. Here, I will review how to adapt the post-Newtonian framework to the case of a class of massless scalar-tensor theories. I will then present recent results for circular, elliptic and hyperbolic orbits, and discuss the main technical challenges associated to each case.


--------------------------------------------------

Link to join:

 https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d
[cid:48681ba6-2443-40c6-a595-4e46defdeb74]<https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d>
Join conversation<https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d>
teams.microsoft.com


List of upcoming Seminars:

20th May: Diederik Roest (Groningen)
10th June: Isobel Romero (Cambridge)
17th June: Rachel Gray (Glasgow)
----------------------------------------------------------------------

With Regards,
-Elisa & Swagat


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From Ella.Batchelor at nottingham.ac.uk  Mon May 12 08:38:41 2025
From: Ella.Batchelor at nottingham.ac.uk (Ella Batchelor)
Date: Mon, 12 May 2025 07:38:41 +0000
Subject: [Astro] [CAPT] CAPT Weekly Bulletin (w/c 12-05-25)
Message-ID: <AM6PR06MB4264835EE9463DF310F1F6439597A@AM6PR06MB4264.eurprd06.prod.outlook.com>

Monday 12th May at 3pm, A113 CAPT ? Theoretical Physics Student Seminar
Juhan Raidal

Modelling of cosmic (super)string networks
---

Tuesdays at 11am, CAPT Foyer ? Astro Coffee



Tuesday 13th May at 11.30am, A113 CAPT ? Astronomy Journal Club



Tuesday 13th May at 1pm, A113 CAPT ? Particle Cosmology and Gravity Seminar
David Trestini (Southampton)

Modelling gravitational waves from compact binaries in scalar tensor theories within the post-Newtonian approximation



The post-Newtonian approximation, which assumes that the orbital velocity of a compact binary is small, has been very successful in obtaining analytical waveforms. Here, I will review how to adapt the post-Newtonian framework to the case of a class of massless scalar-tensor theories. I will then present recent results for circular, elliptic and hyperbolic orbits, and discuss the main technical challenges associated to each case.


Link to join: https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d
---

Wednesday 14th May at 3.45pm, C4 Physics ? Astronomy Weekly Seminar

Prof Clive Tadhunter (Sheffield)

Triggering quasars in the local universe


The literature contains conflicting claims on the importance of mergers in triggering the most luminous quasar-like AGN activity. Part of this may be related to the classification methodology and issues surrounding the subtraction of the bright nuclear psf for the type I AGN, but I will argue that the dominant factor is likely to be surface brightness depth. This can explain the apparent differences between HST- and ground-based estimates of merger rates for quasar host galaxies. Using new results from ground-based observations with high surface brightness depth of samples of 3CR, 2Jy and SDSS-selected type 2 quasar sources as an example, I will demonstrate that mergers are likely to be the dominant, if not sole, triggering mechanism for quasars in the local Universe. I will also stress that cosmological surface brightness dimming makes it particularly challenging to establish merger rates for quasar host galaxies at high redshifts. Finally, I will show how multi-wavelength observations can be used to investigate the nature of the triggering mergers.
---

Thursday 15th May at 1pm, A113 CAPT ? Astronomy Lunch Talk

Nina Hatch

Can intracluster light be used to shed light on the nature of dark matter?


Over the past 2 years there has been an explosion in the number of people researching intracluster light (ICL), within our department. In this talk I will explain how much of the ICL research done in our department fits together to answer a single question: can ICL be used to shed light on the nature of dark matter? I will show how ICL can probe the shape, kinematics and profile of dark matter halos, and how these measurements give insight into dark matter.


Thursday 15th May at 3pm, A113 CAPT ? Particle Cosmology Journal Club

Fridays at 4pm, CAPT Foyer ? CAPT Cakes
---
If you have any events/visitors you would like included in next week?s bulletin, please let me know.


Best wishes

Ella

Ella Batchelor (she/her)
Administrator

School of Physics & Astronomy

University of Nottingham
A112a Centre for Astronomy & Particle Theory
University Park
Nottingham, NG7 2RD

+44 (0) 115 74 86778 |  nottingham.ac.uk<http://nottingham.ac.uk/>

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From Luke.Conaboy at nottingham.ac.uk  Mon May 12 09:11:41 2025
From: Luke.Conaboy at nottingham.ac.uk (Luke Conaboy)
Date: Mon, 12 May 2025 08:11:41 +0000
Subject: [Astro] [CAPT] Astro seminar Wed 14th May 15:45 C4 -- Clive
 Tadhunter (Sheffield)
Message-ID: <E4592915-4E7D-4920-A000-7720879976AC@nottingham.ac.uk>

Hi all,

this week our seminar is given by Clive Tadhunter (Sheffield), details below. The seminar will be in C4.

Post-seminar refreshments will be wine and cheese.

Timings are as usual:

- lunch at Lakeside, leaving CAPT ~13:00 (subsidised for a limited number of students -- let me know before the end of the day tomorrow)
- meet the speaker for postgrads at 15:00, finishing at 15:30
- seminar at 15:45 in C5/C4
- post-seminar wine and cheese at 16:45

This seminar will be conducted in person only.

Best,
Jesse and Luke

==

Triggering quasars in the local universe

The literature contains conflicting claims on the importance of mergers in triggering the most luminous quasar-like AGN activity. Part of this may be related to the classification methodology and issues surrounding the subtraction of the bright nuclear psf for the type I AGN, but I will argue that the dominant factor is likely to be surface brightness depth. This can explain the apparent differences between HST- and ground-based estimates of merger rates for quasar host galaxies. Using new results from ground-based observations with high surface brightness depth of samples of 3CR, 2Jy and SDSS-selected type 2 quasar sources as an example, I will demonstrate that mergers are likely to be the dominant, if not sole, triggering mechanism for quasars in the local Universe. I will also stress that cosmological surface brightness dimming makes it particularly challenging to establish merger rates for quasar host galaxies at high redshifts. Finally, I will show how multi-wavelength observations can be used to investigate the nature of the triggering mergers.
_______________________________________________
CAPT mailing list
CAPT at lists.nottingham.ac.uk
https://lists.nottingham.ac.uk/mailman/listinfo/capt

From Joseph.Butler at nottingham.ac.uk  Mon May 12 10:00:00 2025
From: Joseph.Butler at nottingham.ac.uk (Joseph Butler)
Date: Mon, 12 May 2025 09:00:00 +0000
Subject: [Astro] Lunch Talk - 15/5/25
Message-ID: <A7833FB8-C7CF-483E-B50B-8C113CC3181B@nottingham.ac.uk>

Hi everyone,

This week?s lunch talk will be given by Nina, at 1pm Thursday in A113. Title and abstract are below.

Title: Can intracluster light be used to shed light on the nature of dark matter?

Abstract: Over the past 2 years there has been an explosion in the number of people researching intracluster light (ICL), within our department. In this talk I will explain how much of the ICL research done in our department fits together to answer a single question: can ICL be used to shed light on the nature of dark matter? I will show how ICL can probe the shape, kinematics and profile of dark matter halos, and how these measurements give insight into dark matter.

Thanks,
Joe
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From Luke.Conaboy at nottingham.ac.uk  Tue May 13 15:26:43 2025
From: Luke.Conaboy at nottingham.ac.uk (Luke Conaboy)
Date: Tue, 13 May 2025 14:26:43 +0000
Subject: [Astro] [CAPT] Fwd: Astro seminar Wed 14th May 15:45 C4 -- Clive
 Tadhunter (Sheffield)
References: <E4592915-4E7D-4920-A000-7720879976AC@nottingham.ac.uk>
Message-ID: <47E197DD-FE4F-4DB7-A653-B42CCEDFE9EA@nottingham.ac.uk>

Still looking for people to join for lunch tomorrow, we'll leave around ~13:15 when Clive arrives.

Best,
Luke

Begin forwarded message:

From: Luke Conaboy <Luke.Conaboy at nottingham.ac.uk>
Subject: [Astro] [CAPT] Astro seminar Wed 14th May 15:45 C4 -- Clive Tadhunter (Sheffield)
Date: 12 May 2025 at 09:11:41 BST
To: "capt at nottingham.ac.uk" <capt at nottingham.ac.uk>
Cc: Pamela Davies <Pamela.Davies at nottingham.ac.uk>, Kushal Pithia <ppykp2 at nottingham.ac.uk>

Hi all,

this week our seminar is given by Clive Tadhunter (Sheffield), details below. The seminar will be in C4.

Post-seminar refreshments will be wine and cheese.

Timings are as usual:

- lunch at Lakeside, leaving CAPT ~13:00 (subsidised for a limited number of students -- let me know before the end of the day tomorrow)
- meet the speaker for postgrads at 15:00, finishing at 15:30
- seminar at 15:45 in C5/C4
- post-seminar wine and cheese at 16:45

This seminar will be conducted in person only.

Best,
Jesse and Luke

==

Triggering quasars in the local universe

The literature contains conflicting claims on the importance of mergers in triggering the most luminous quasar-like AGN activity. Part of this may be related to the classification methodology and issues surrounding the subtraction of the bright nuclear psf for the type I AGN, but I will argue that the dominant factor is likely to be surface brightness depth. This can explain the apparent differences between HST- and ground-based estimates of merger rates for quasar host galaxies. Using new results from ground-based observations with high surface brightness depth of samples of 3CR, 2Jy and SDSS-selected type 2 quasar sources as an example, I will demonstrate that mergers are likely to be the dominant, if not sole, triggering mechanism for quasars in the local Universe. I will also stress that cosmological surface brightness dimming makes it particularly challenging to establish merger rates for quasar host galaxies at high redshifts. Finally, I will show how multi-wavelength observati
ons can be used to investigate the nature of the triggering mergers.
_______________________________________________
CAPT mailing list
CAPT at lists.nottingham.ac.uk
https://lists.nottingham.ac.uk/mailman/listinfo/capt
--
Astro mailing list
Astro at lists.nottingham.ac.uk
https://lists.nottingham.ac.uk/mailman/listinfo/astro

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From Luke.Conaboy at nottingham.ac.uk  Wed May 14 11:40:26 2025
From: Luke.Conaboy at nottingham.ac.uk (Luke Conaboy)
Date: Wed, 14 May 2025 10:40:26 +0000
Subject: [Astro] [CAPT] Astro seminar Wed 14th May 15:45 C4 -- Clive
 Tadhunter (Sheffield)
In-Reply-To: <E4592915-4E7D-4920-A000-7720879976AC@nottingham.ac.uk>
References: <E4592915-4E7D-4920-A000-7720879976AC@nottingham.ac.uk>
Message-ID: <94AE1499-3A78-456F-9C18-915799882B26@nottingham.ac.uk>

Reminder for our seminar. To those joining for lunch, we'll leave at ~13:15 to head to Lakeside.

> On 12 May 2025, at 09:11, Luke Conaboy (staff) <ppzlc1 at exmail.nottingham.ac.uk> wrote:
> 
> Hi all,
> 
> this week our seminar is given by Clive Tadhunter (Sheffield), details below. The seminar will be in C4.
> 
> Post-seminar refreshments will be wine and cheese.
> 
> Timings are as usual:
> 
> - lunch at Lakeside, leaving CAPT ~13:00 (subsidised for a limited number of students -- let me know before the end of the day tomorrow)
> - meet the speaker for postgrads at 15:00, finishing at 15:30
> - seminar at 15:45 in C5/C4
> - post-seminar wine and cheese at 16:45
> 
> This seminar will be conducted in person only.
> 
> Best,
> Jesse and Luke
> 
> ==
> 
> Triggering quasars in the local universe
> 
> The literature contains conflicting claims on the importance of mergers in triggering the most luminous quasar-like AGN activity. Part of this may be related to the classification methodology and issues surrounding the subtraction of the bright nuclear psf for the type I AGN, but I will argue that the dominant factor is likely to be surface brightness depth. This can explain the apparent differences between HST- and ground-based estimates of merger rates for quasar host galaxies. Using new results from ground-based observations with high surface brightness depth of samples of 3CR, 2Jy and SDSS-selected type 2 quasar sources as an example, I will demonstrate that mergers are likely to be the dominant, if not sole, triggering mechanism for quasars in the local Universe. I will also stress that cosmological surface brightness dimming makes it particularly challenging to establish merger rates for quasar host galaxies at high redshifts. Finally, I will show how multi-wavelength observations can be used to investigate the nature of the triggering mergers.


_______________________________________________
CAPT mailing list
CAPT at lists.nottingham.ac.uk
https://lists.nottingham.ac.uk/mailman/listinfo/capt

From Joseph.Butler at nottingham.ac.uk  Thu May 15 09:17:16 2025
From: Joseph.Butler at nottingham.ac.uk (Joseph Butler)
Date: Thu, 15 May 2025 08:17:16 +0000
Subject: [Astro] Lunch Talk - 15/5/25
In-Reply-To: <A7833FB8-C7CF-483E-B50B-8C113CC3181B@nottingham.ac.uk>
References: <A7833FB8-C7CF-483E-B50B-8C113CC3181B@nottingham.ac.uk>
Message-ID: <6AE73213-BD58-4B6A-B980-CF765DCAF062@nottingham.ac.uk>

Hi all,

Reminder of the lunch talk today at 1pm in A113!

Joe

On 9 May 2025, at 15:33, Joseph Butler <ppxjb4 at exmail.nottingham.ac.uk> wrote:

Hi everyone,

This week?s lunch talk will be given by Nina, at 1pm Thursday in A113. Title and abstract are below.

Title: Can intracluster light be used to shed light on the nature of dark matter?

Abstract: Over the past 2 years there has been an explosion in the number of people researching intracluster light (ICL), within our department. In this talk I will explain how much of the ICL research done in our department fits together to answer a single question: can ICL be used to shed light on the nature of dark matter? I will show how ICL can probe the shape, kinematics and profile of dark matter halos, and how these measurements give insight into dark matter.

Thanks,
Joe

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From Alfonso.Aragon at nottingham.ac.uk  Thu May 15 09:30:22 2025
From: Alfonso.Aragon at nottingham.ac.uk (Alfonso Aragon-Salamanca)
Date: Thu, 15 May 2025 08:30:22 +0000
Subject: [Astro] =?utf-8?q?=5BCAPT=5D_Universiti_Malaya_=28UM=29_Global_A?=
 =?utf-8?q?cademic_Talent_Recruitment=2C_UK_=E2=80=93_June_2025?=
In-Reply-To: <CAMeVZZXwpDiMPwuYjaFS372N6kSsbe1us8bThDOaj=eqALMeng@mail.gmail.com>
References: <CAMeVZZXwpDiMPwuYjaFS372N6kSsbe1us8bThDOaj=eqALMeng@mail.gmail.com>
Message-ID: <AM6PR06MB5112DF8567B6FE9466AA947BA390A@AM6PR06MB5112.eurprd06.prod.outlook.com>

Dear all,

I had some involvement with the Universiti Malaya in the past, and they have sent me this information that may be of interest to the most adventurous amongst you.

Best wishes,

Alfonso




Alfonso Arag?n-Salamanca

Professor of Astronomy



School of Physics and Astronomy
University of Nottingham

Room B106b, Centre for Astronomy and Particle Theory

University Park

Nottingham, NG7 2RD, UK



+44 (0) 115 95 16230 | alfonso.aragon at nottingham.ac.uk<mailto:alfonso.aragon at nottingham.ac.uk>

URL: http://nottingham.ac.uk/physics/people/alfonso.aragon

General teaching enquiries physics-teaching at nottingham.ac.uk<mailto:physics-teaching at nottingham.ac.uk>



________________________________
From: HTM ADMINISTRATOR . <htm_official at um.edu.my>
Sent: 15 May 2025 2:56 AM
Subject: Request to Disseminate Information ? Universiti Malaya (UM) Global Academic Talent Recruitment, UK ? June 2025

You don't often get email from htm_official at um.edu.my. Learn why this is important<https://aka.ms/LearnAboutSenderIdentification>
Dear Professor/ Dr/ Sir/ Madam/ Miss,

Greetings from the Human Talent Management Centre (HTM), Universiti Malaya.

We are pleased to share that Universiti Malaya will be conducting its Global Academic Talent Recruitment Program in the United Kingdom from 10 to 13 June 2025, as part of our strategic effort to attract high-potential academic talent and PhD candidates to join UM?s growing academic community.

The sessions will be held as follows:
? 10?11 June 2025 ? Malaysian Hall, London
? 12?13 June 2025 ? University of Manchester, Manchester

We are currently seeking:

  *   Academic Talent (Malaysian and international) ? for PhD holders and final-year PhD candidates

  *   PhD Scholarship Applicants (Malaysians only) ? final-year Master?s students seeking to pursue doctoral studies

Targeted fields include (but are not limited to):
Semiconductors & Chips, Artificial Intelligence, Nuclear & New Energy Transition, Rare Earth Minerals, Food Security, Nanotechnology, Social Sciences, Defense Innovation, and other emerging areas.

We would appreciate your kind support in disseminating the attached promotional materials to your relevant networks, including alumni, academic partners, and other potential contacts.

? Application Deadline: 3rd June 2025
? For further enquiries: tec_official at um.edu.my

We have attached the promotional materials for your further action.

Thank you for your continued support in advancing Universiti Malaya?s global talent initiatives. For further details, please feel free to contact us. (Pn Amy: 6012-9437638/ermiza at um.edu.my<mailto:ermiza at um.edu.my> OR Pn Elmi: 6019-3469326/khairulelmi at um.edu.my<mailto:khairulelmi at um.edu.my> OR Pn Malisa: 6017-8480105/ malisadiana at um.ed.my<mailto:malisadiana at um.ed.my>)

[Poster UK 1.jpeg]
[Poster UK 2.jpeg]

Kind regards,


[UM Logo]

Pengarah | Director
Pusat Pengurusan Insan | Human Talent Management Centre
Jabatan Sumber Manusia | Human Resource Department

Universiti Malaya
Aras 6, Canseleri
50603 Kuala Lumpur, Malaysia
Tel: +603-7967 3523 | Faks: +603-7956 2158
https://um.edu.my/

[https://ci3.googleusercontent.com/mail-sig/AIorK4znfrNbXu9jgBwzGKedi3FXpqByHHZO3s-6xNSBgLU84jAZ9X_D0aWZE-Oy0xT93a7oVQpz1Sw]

[Website]<https://www.um.edu.my/> [Facebook] <https://www.facebook.com/UniversityOfMalaya/>  [Twitter] <https://twitter.com/unimalaya>  [Instagram] <https://instagram.com/unimalaya>  [YouTube] <https://www.youtube.com/user/UniOfMalaya>


Dihantar oleh: I Sent by:



Wang Sok Wai, #3340



Hud Hanapi, #7785



Anida Kamaludin, #3474



Khairuddin Abdul Hamid, #3388

 /

Malisa Diana Ulul Azmi, #3262



Nur Hidayah Muhamad #3261



Nur Syafinaz Ghani #7909



Nurdianah Mustafa #7785



Nur Shafiqah Mohd Yusoff #7755



" PENAFIAN: E-mel ini dan apa-apa fail yang dikepilkan bersamanya ("Mesej") adalah ditujukan hanya untuk kegunaan penerima(-penerima) yang termaklum di atas dan mungkin mengandungi maklumat sulit. Anda dengan ini dimaklumkan bahawa mengambil apa jua tindakan bersandarkan kepada, membuat penilaian, mengulang hantar, menghebah, mengedar, mencetak, atau menyalin Mesej ini atau sebahagian daripadanya oleh sesiapa selain daripada penerima(-penerima) yang termaklum di atas adalah dilarang. Jika anda telah menerima Mesej ini kerana kesilapan, anda mesti menghapuskan Mesej ini dengan segera dan memaklumkan kepada penghantar Mesej ini menerusi balasan e-mel. Pendapat-pendapat, rumusan-rumusan, dan sebarang maklumat lain di dalam Mesej ini yang tidak berkait dengan urusan rasmi Universiti Malaya adalah difahami sebagai bukan dikeluar atau diperakui oleh mana-mana pihak yang disebut.


DISCLAIMER: This e-mail and any files transmitted with it ("Message") is intended only for the use of the recipient(s) named above and may contain confidential information. You are hereby notified that the taking of any action in reliance upon, or any review, retransmission, dissemination, distribution, printing or copying of this Message or any part thereof by anyone other than the intended recipient(s) is strictly prohibited. If you have received this Message in error, you should delete this Message immediately and advise the sender by return e-mail. Opinions, conclusions and other information in this Message that do not relate to the official business of University of Malaya shall be understood as neither given nor endorsed by any of the forementioned. "
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From Emma.Chapman at nottingham.ac.uk  Fri May 16 16:04:35 2025
From: Emma.Chapman at nottingham.ac.uk (Emma Chapman)
Date: Fri, 16 May 2025 15:04:35 +0000
Subject: [Astro] Brownies and Blueberry Muffins
Message-ID: <AM6PR06MB5688511925FD1950E3E92081CA93A@AM6PR06MB5688.eurprd06.prod.outlook.com>

We made it through another week! Celebrate with cake!


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From Elisa.Todarello at nottingham.ac.uk  Sun May 18 15:57:43 2025
From: Elisa.Todarello at nottingham.ac.uk (Elisa Todarello)
Date: Sun, 18 May 2025 14:57:43 +0000
Subject: [Astro] [CAPT] Fw: CA21106 Training School in Annecy--Deadline
 extended to 6th June
In-Reply-To: <CAORyVQfyh2HmPMhsMnX2-rXErVc0rjwxAgFT99Np4NKZ-d4vNQ@mail.gmail.com>
References: <CANUBGjUDapFsbkKd5-rUKr+hSUCbdO9SWdyaZY2gLXDDHeyhPw@mail.gmail.com>
 <CAORyVQfyh2HmPMhsMnX2-rXErVc0rjwxAgFT99Np4NKZ-d4vNQ@mail.gmail.com>
Message-ID: <PAXPR06MB8421CDA63C1876DF98D02102DF9DA@PAXPR06MB8421.eurprd06.prod.outlook.com>

Hello,

Registration is still open for the summer school on WISPs (weakly interacting slim particles).

Elisa

---------- Forwarded message ---------
From: Cosmic Wispers <cosmic.wispers at gmail.com<mailto:cosmic.wispers at gmail.com>>
Date: Fri, May 16, 2025 at 3:59?PM
Subject: CA21106 Training School in Annecy--Deadline extended to 6th June
To: Alessandro Mirizzi <alessandro.mirizzi at ba.infn.it<mailto:alessandro.mirizzi at ba.infn.it>>


Dear all,

I would  inform  you that the deadline for the registration to the Training School in Annecy  (https://indico.in2p3.fr/event/35550/overview) has been extended to  6th June.

We still have the possibility to financially support students interested in attending the School.

The support will cover:

  *   up to 250 euros for travel expenses
  *   100 euros for daily allowance

For interested students, don't forget to register.

Best regards,
Alessandro Mirizzi
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From Swagat.Mishra at nottingham.ac.uk  Mon May 19 08:00:00 2025
From: Swagat.Mishra at nottingham.ac.uk (Swagat Mishra)
Date: Mon, 19 May 2025 07:00:00 +0000
Subject: [Astro] [CAPT] Particle Cosmology and Gravity Seminar this week:
 Diederik Roest from Groningen
Message-ID: <DB7PR06MB57840F0A52261E61105D755D889DA@DB7PR06MB5784.eurprd06.prod.outlook.com>

Dear All,

                  We have Diederik Roest visiting us from Groningen this week. The seminar details are provided below -

-----------------------------------------

Speaker: Diederik Roest (University of Groningen)

Seminar date: May 20th, Tuesday, 1 pm UK time

Venue: Seminar Room A 113 (Cripps North Building, CAPT)


Title: Hidden zeros in plane site: on the unity and covariance of Goldstone boson scattering amplitudes


Abstract:  We will provide a pedestrian introduction to the symmetries and scattering of Goldstone bosons, with main emphasis on Pions. Their amplitudes feature surprising aspects, such as the long-known Adler zero but also hidden zeros and factorisations, as found very recently. We will put forward a covariant formulation where their properties are manifest throughout and show an exact factorisation theorem. Finally, we comment on the unity with other Goldstone boson theories, such as DBI and the special Galileon.

--------------------------------------------------

Link to join:

 https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d
[cid:86fb876f-a00e-42ac-bc48-294f7359c2ed]<https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d>
Join conversation<https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d>
teams.microsoft.com


List of upcoming Seminars:

10th June: Isobel Romero (Cambridge)
17th June: Rachel Gray (Glasgow)
----------------------------------------------------------------------

With Regards,
-Elisa & Swagat




Swagat Saurav Mishra,

Postdoctoral Research Associate

?

Particle Cosmology Group,

Centre for Astronomy and Particle Theory,

University of Nottingham, Nottingham NG7 2RD, UK.

Website: https://swagatam18.wordpress.com/

Research Link:https://inspirehep.net/authors/1517353

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From Ella.Batchelor at nottingham.ac.uk  Mon May 19 08:12:34 2025
From: Ella.Batchelor at nottingham.ac.uk (Ella Batchelor)
Date: Mon, 19 May 2025 07:12:34 +0000
Subject: [Astro] [CAPT] CAPT Weekly Bulletin (w/c 19-05-25)
Message-ID: <AM6PR06MB426475CDA454C316E5997ECC959CA@AM6PR06MB4264.eurprd06.prod.outlook.com>

Monday 19th May at 3pm, A113 CAPT ? Theoretical Physics Student Seminar
Noe Larousse

Vacuum bubbles and Penrose diagrams
---

Tuesdays at 11am, CAPT Foyer ? Astro Coffee



Tuesday 20th May at 11.30am, A113 CAPT ? Astronomy Journal Club



Tuesday 20th May at 1pm, A113 CAPT ? Particle Cosmology and Gravity Seminar
Diederick Roest (Groningen)

Hidden zeros in plane site: on the unity and covariance of Goldstone boson scattering amplitudes



We will provide a pedestrian introduction to the symmetries and scattering of Goldstone bosons, with main emphasis on Pions. Their amplitudes feature surprising aspects, such as the long-known Adler zero but also hidden zeros and factorisations, as found very recently. We will put forward a covariant formulation where their properties are manifest throughout and show an exact factorisation theorem. Finally, we comment on the unity with other Goldstone boson theories, such as DBI and the special Galileon.


Link to join: https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d
---

Wednesday 21st May at 3.45pm, C4 Physics ? Astronomy Weekly Seminar

Sugata Kaviraj (Hertfordshire)

Dwarf galaxies in deep-wide surveys: a new frontier in the study of galaxy evolution


Dwarf (M < 10^9.5 MSun) galaxies dominate the galaxy number density, making them critical to a complete understanding of galaxy evolution. However, typical dwarfs are not bright enough to be detectable, outside the very local Universe, in past large surveys like the SDSS, because they are too shallow. The dwarfs that do exist in such surveys have extreme star formation rates, which makes them anomalously blue and unrepresentative of dwarfs in general. New deep-wide surveys from the Hyper Suprime-Cam (HSC), LSST and Euclid will revolutionise our understanding of galaxy evolution, by offering unbiased statistical samples of dwarfs out to at least z?0.4. We demonstrate the game-changing potential of such surveys, by exploring four key aspects of galaxy evolution in the dwarf regime (10^8 MSun < M < 10^9.5 MSun), using several thousand dwarfs in the HSC U/deep footprint in COSMOS: star formation, quenching, morphologies and AGN activity.

The fraction of red/quenched dwarfs in HSC U/Deep is around 40%, a factor of 8 higher than what is concluded using the SDSS. Red dwarfs reside in higher-density environments and closer to nodes, large-scale filaments and massive galaxies. However, the probability of dwarfs being red is most strongly correlated with the distance to the nearest massive galaxy. Dwarfs show three principal morphological types: early-type, late-type and a featureless class which lacks both the central concentrations found in early-types or any spiral structure. Dwarf early-types, unlike their massive counterparts, are likely to be shaped by secular processes (not interactions), while the featureless dwarfs are likely created by baryonic feedback. Finally, broadband variability studies (which will become a key tool for AGN detection in the LSST era) suggest that the incidence of AGN in dwarfs and massive galaxies may be similar, suggesting that AGN could be important in the dwarf regime, as they are in massive galaxies. Dwarfs represent a vast discovery space for new and future deep-wide surveys like Euclid and LSST which promises new insights into how galaxies form and evolve over cosmic time.
---

Thursday 22nd  May at 1pm, A113 CAPT ? Astronomy Lunch Talk

Jacob Campbell

Dark matter substructure detection using gravitational lensing and machine learning


Simulations have shown that dark matter not only forms as a large halo around galaxies, but also as a population of smaller subhaloes. The mass function of these subhaloes is dependent on the dark matter model used, therefore constraining this mass function can provide valuable insight into the nature of dark matter. Gravitational lensing provides a promising method for both detecting the presence of subhaloes as well as measuring their masses by searching for perturbations in Einstein rings. The upcoming surveys of Euclid and LSST are expected to provide ~100,000 observations of new lensed systems, therefore it is important to develop a method that allows us to quickly identify and determine the mass of subhaloes. In this talk, I will explore the prospect of using a machine learning based method for subhalo detection in preparation for these surveys, as well as looking at the limitations and potential issues that we expect to face.


Sara Santoni (Sapienza, University of Rome)

The Three Hundred project: estimating the dependence of cosmic filaments on galaxy clusters properties from 3D and 2D maps


Galaxy clusters reside in the densest areas of the universe and are intricately connected to larger structures through the filamentary network of the cosmic web. In this framework, matter flows from lower density areas to higher density ones. As a result, galaxy clusters are deeply influenced by the presence of cosmic filaments attached to them, which can be quantified by a parameter known as connectivity. We benefit from the extensive data set of The Three Hundred hydrodynamical simulation, which provides 324 simulated cosmological regions, centred on massive galaxy clusters. We extract the cosmic web in the outskirts of the massive galaxy clusters, focusing on filaments, from 3D gas density maps and 2D Compton-y, X-rays and optical mock-maps that mimic the properties of known instruments. We investigate the correlation between the presence of filaments and the main properties of galaxy clusters, such as their mass, dynamical state ? expressed in terms of the degree of relaxation and hydrodynamical mass bias ? and the filaments? evolution with redshift. We study the projection effects in the cosmic web identification arising from 3D maps to 2D. Lastly, we compare the skeletons extracted from gas maps with those from mock y and X-rays maps.


Thursday 22nd May at 3pm, A113 CAPT ? Particle Cosmology Journal Club

Fridays at 4pm, CAPT Foyer ? CAPT Cakes
---
VISITORS
PhD student Sara Santoni is visiting from Rome to from Mon - Fri to work with Meghan, Frazer, Ulli, and the rest of cosmic web group.

---

If you have any events/visitors you would like included in next week?s bulletin, please let me know.


Best wishes

Ella

Ella Batchelor (she/her)
Administrator

School of Physics & Astronomy

University of Nottingham
A112a Centre for Astronomy & Particle Theory
University Park
Nottingham, NG7 2RD

+44 (0) 115 74 86778 |  nottingham.ac.uk<http://nottingham.ac.uk/>

[cid:image001.png at 01DBC894.CAE80580]

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From Joseph.Butler at nottingham.ac.uk  Mon May 19 09:00:00 2025
From: Joseph.Butler at nottingham.ac.uk (Joseph Butler)
Date: Mon, 19 May 2025 08:00:00 +0000
Subject: [Astro] Lunch Talk - 22/5/25
Message-ID: <DBC36314-A5D1-43FE-B661-A5775B88E3A9@nottingham.ac.uk>

Hi everyone,

This week we have two talks that will be given in our lunch talk slot. The first will be given by Jacob, and the second will be given Sara Santoni, a PhD student from Sapienza University of Rome visiting the department this week. As per usual, this will be at 1pm Thursday in A113, but keep in mind that we?ll be using the full hour. Title and abstracts are below.

Jacob Campbell: Dark matter substructure detection using gravitational lensing and machine learning

Simulations have shown that dark matter not only forms as a large halo around galaxies, but also as a population of smaller subhaloes. The mass function of these subhaloes is dependent on the dark matter model used, therefore constraining this mass function can provide valuable insight into the nature of dark matter. Gravitational lensing provides a promising method for both detecting the presence of subhaloes as well as measuring their masses by searching for perturbations in Einstein rings. The upcoming surveys of Euclid and LSST are expected to provide ~100,000 observations of new lensed systems, therefore it is important to develop a method that allows us to quickly identify and determine the mass of subhaloes. In this talk, I will explore the prospect of using a machine learning based method for subhalo detection in preparation for these surveys, as well as looking at the limitations and potential issues that we expect to face.

Sara Santoni: The Three Hundred project: estimating the dependence of cosmic filaments on galaxy clusters properties from 3D and 2D maps.


Galaxy clusters reside in the densest areas of the universe and are intricately connected to larger structures through the filamentary network of the cosmic web. In this framework, matter flows from lower density areas to higher density ones. As a result, galaxy clusters are deeply influenced by the presence of cosmic filaments attached to them, which can be quantified by a parameter known as connectivity. We benefit from the extensive data set of The Three Hundred hydrodynamical simulation, which provides 324 simulated cosmological regions, centred on massive galaxy clusters. We extract the cosmic web in the outskirts of the massive galaxy clusters, focusing on filaments, from 3D gas density maps and 2D Compton-y, X-rays and optical mock-maps that mimic the properties of known instruments. We investigate the correlation between the presence of filaments and the main properties of galaxy clusters, such as their mass, dynamical state ? expressed in terms of the degree of relaxation and hydrodynamical mass bias ? and the filaments? evolution with redshift. We study the projection effects in the cosmic web identification arising from 3D maps to 2D. Lastly, we compare the skeletons extracted from gas maps with those from mock y and X-rays maps.

Thanks,
Joe
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From Jesse.Golden-Marx at nottingham.ac.uk  Mon May 19 09:30:46 2025
From: Jesse.Golden-Marx at nottingham.ac.uk (Jesse Golden-Marx)
Date: Mon, 19 May 2025 08:30:46 +0000
Subject: [Astro] [CAPT] Seminar 21/5 Wednesday @C4 -- 15:45 with Sugata
 Kaviraj (Hertfordshire)
Message-ID: <OSMPR06MB9931182472A17B540ED8BC37CC9CA@OSMPR06MB9931.eurprd06.prod.outlook.com>

Hi Everyone,

Our seminar this week will be given by Prof. Sugata Kaviraj (Hertfordshire), details below. The seminar will be in C4.

Post-seminar refreshments will be wine and cheese.

Sugata will be arriving by 13:00.

Timings are as usual:

- lunch at Lakeside, leaving CAPT ~13:00 (subsidized for a limited number of students -- let me know before the end of the day tomorrow)
- meet the speaker for postgrads at 15:00, finishing at 15:30
- seminar at 15:45 in C4
- post-seminar wine and cheese at 16:45

This seminar will be conducted in person only.

Best,
Jesse and Luke


Title: Dwarf galaxies in deep-wide surveys: a new frontier in the study of galaxy evolution

Abstract:
Dwarf (M < 10^9.5 MSun) galaxies dominate the galaxy number density, making them critical to a complete understanding of galaxy evolution. However, typical dwarfs are not bright enough to be detectable, outside the very local Universe, in past large surveys like the SDSS, because they are too shallow. The dwarfs that do exist in such surveys have extreme star formation rates, which makes them anomalously blue and unrepresentative of dwarfs in general. New deep-wide surveys from the Hyper Suprime-Cam (HSC), LSST and Euclid will revolutionise our understanding of galaxy evolution, by offering unbiased statistical samples of dwarfs out to at least z?0.4. We demonstrate the game-changing potential of such surveys, by exploring four key aspects of galaxy evolution in the dwarf regime (10^8 MSun < M < 10^9.5 MSun), using several thousand dwarfs in the HSC U/deep footprint in COSMOS: star formation, quenching, morphologies and AGN activity.

The fraction of red/quenched dwarfs in HSC U/Deep is around 40%, a factor of 8 higher than what is concluded using the SDSS. Red dwarfs reside in higher-density environments and closer to nodes, large-scale filaments and massive galaxies. However, the probability of dwarfs being red is most strongly correlated with the distance to the nearest massive galaxy. Dwarfs show three principal morphological types: early-type, late-type and a featureless class which lacks both the central concentrations found in early-types or any spiral structure. Dwarf early-types, unlike their massive counterparts, are likely to be shaped by secular processes (not interactions), while the featureless dwarfs are likely created by baryonic feedback. Finally, broadband variability studies (which will become a key tool for AGN detection in the LSST era) suggest that the incidence of AGN in dwarfs and massive galaxies may be similar, suggesting that AGN could be important in the dwarf regime, as they are in massive galaxies. Dwarfs represent a vast discovery space for new and future deep-wide surveys like Euclid and LSST which promises new insights into how galaxies form and evolve over cosmic time.






Jesse Golden-Marx, Ph.D.
Senior Research Associate

Centre for Astronomy & Particle Theory
School of Physics & Astronomy
University of Nottingham
University Park, Nottingham, UK
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From Swagat.Mishra at nottingham.ac.uk  Mon May 19 16:04:47 2025
From: Swagat.Mishra at nottingham.ac.uk (Swagat Mishra)
Date: Mon, 19 May 2025 15:04:47 +0000
Subject: [Astro] [CAPT] Particle Cosmology and Gravity Seminar this
 week: Diederik Roest from Groningen
In-Reply-To: <DB7PR06MB57840F0A52261E61105D755D889DA@DB7PR06MB5784.eurprd06.prod.outlook.com>
References: <DB7PR06MB57840F0A52261E61105D755D889DA@DB7PR06MB5784.eurprd06.prod.outlook.com>
Message-ID: <DB7PR06MB5784C4D0BEFE7AA2AEE0B2C3889CA@DB7PR06MB5784.eurprd06.prod.outlook.com>

Dear All,
                       Due to the scheduled UCU meeting, we will start tomorrow's seminar 30 minutes later, i.e. at 13.30 UK time.

With regards,
-Swagat


Swagat Saurav Mishra,

Postdoctoral Research Associate

?

Particle Cosmology Group,

Centre for Astronomy and Particle Theory,

University of Nottingham, Nottingham NG7 2RD, UK.

Website: https://swagatam18.wordpress.com/

Research Link:https://inspirehep.net/authors/1517353

________________________________
From: Particles <particles-bounces at lists.nottingham.ac.uk> on behalf of Swagat Mishra <Swagat.Mishra at nottingham.ac.uk>
Sent: 19 May 2025 08:00
To: capt at nottingham.ac.uk <capt at nottingham.ac.uk>; ncog-people at nottingham.ac.uk <ncog-people at nottingham.ac.uk>; O365-Gravity Laboratory <o365-gravitylaboratory at UniofNottm.onmicrosoft.com>
Cc: Ella Batchelor (staff) <ppzeb1 at exmail.nottingham.ac.uk>; Bobby Acharya <bacharya at ictp.it>; Leonora van Deurs <ppylv1 at exmail.nottingham.ac.uk>; Drande Patogu <ppydp10 at exmail.nottingham.ac.uk>; Jacob Thornley <ppyjt15 at exmail.nottingham.ac.uk>
Subject: [Particles] [CAPT] Particle Cosmology and Gravity Seminar this week: Diederik Roest from Groningen

Dear All,

                  We have Diederik Roest visiting us from Groningen this week. The seminar details are provided below -

-----------------------------------------

Speaker: Diederik Roest (University of Groningen)

Seminar date: May 20th, Tuesday, 1 pm UK time

Venue: Seminar Room A 113 (Cripps North Building, CAPT)


Title: Hidden zeros in plane site: on the unity and covariance of Goldstone boson scattering amplitudes


Abstract:  We will provide a pedestrian introduction to the symmetries and scattering of Goldstone bosons, with main emphasis on Pions. Their amplitudes feature surprising aspects, such as the long-known Adler zero but also hidden zeros and factorisations, as found very recently. We will put forward a covariant formulation where their properties are manifest throughout and show an exact factorisation theorem. Finally, we comment on the unity with other Goldstone boson theories, such as DBI and the special Galileon.

--------------------------------------------------

Link to join:

 https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d
[cid:86fb876f-a00e-42ac-bc48-294f7359c2ed]<https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d>
Join conversation<https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d>
teams.microsoft.com


List of upcoming Seminars:

10th June: Isobel Romero (Cambridge)
17th June: Rachel Gray (Glasgow)
----------------------------------------------------------------------

With Regards,
-Elisa & Swagat




Swagat Saurav Mishra,

Postdoctoral Research Associate

?

Particle Cosmology Group,

Centre for Astronomy and Particle Theory,

University of Nottingham, Nottingham NG7 2RD, UK.

Website: https://swagatam18.wordpress.com/

Research Link:https://inspirehep.net/authors/1517353

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From Alfonso.Aragon at nottingham.ac.uk  Tue May 20 09:41:01 2025
From: Alfonso.Aragon at nottingham.ac.uk (Alfonso Aragon-Salamanca)
Date: Tue, 20 May 2025 08:41:01 +0000
Subject: [Astro] [CAPT] Next Generation Network: Upcoming Cabling Works at
 CAPt
In-Reply-To: <VE1PR06MB69928EF8D98F5BBFFB46AED5C79FA@VE1PR06MB6992.eurprd06.prod.outlook.com>
References: <PAXPR06MB815700CD8E2DE402F6623F26C193A@PAXPR06MB8157.eurprd06.prod.outlook.com>
 <VE1PR06MB69928EF8D98F5BBFFB46AED5C79FA@VE1PR06MB6992.eurprd06.prod.outlook.com>
Message-ID: <AM6PR06MB51128573B8BF08ED2CEEC066A39FA@AM6PR06MB5112.eurprd06.prod.outlook.com>

Dear all,

See message  below. Sorry about the short notice, but I just got it. In summary: as part of Digital and Technology Services' ongoing improvements to enhance connectivity and enable the benefits of the Next Generation Network, work to install additional wireless access points (WAPs) will begin in CAPT on Thursday 22 May (for up to 7 days). Hopefully, this will improve wireless internet access in all parts of the building.

I don't actually think it will take very long (my guess is that they will only need to install a couple of additional WAPs, but all the information I have is in the message below.

There will be only minor disruptions (see below for details), but please let me know if it gets in the way of your work.

Best wishes,

Alfonso



Alfonso Arag?n-Salamanca

Professor of Astronomy



School of Physics and Astronomy
University of Nottingham

Room B106b, Centre for Astronomy and Particle Theory

University Park

Nottingham, NG7 2RD, UK



+44 (0) 115 95 16230 | alfonso.aragon at nottingham.ac.uk<mailto:alfonso.aragon at nottingham.ac.uk>

URL: http://nottingham.ac.uk/physics/people/alfonso.aragon

General teaching enquiries physics-teaching at nottingham.ac.uk<mailto:physics-teaching at nottingham.ac.uk>



From: UI-DTS-NGN <UI-DTS-NGN at exmail.nottingham.ac.uk>
Sent: 16 May 2025 16:36
To: UI-DTS-NGN <UI-DTS-NGN at exmail.nottingham.ac.uk>
Subject: Next Generation Network: Upcoming Cabling Works




 [Image]

   [Graphical user interface  Description automatically generated with low confidence]

  Next Generation Network Update









Next Generation Network: Upcoming Cabling Works



As part of Digital and Technology Services' ongoing improvements to enhance connectivity and enable the benefits of the Next Generation Network, work to install additional wireless access points (WAPs) will begin in the following buildings:



  *   Cripps North Building - Thursday 22 May (for up to 7 days)

  *   The Hemsley - Lenton Mount - Tuesday 27 May (for up to 10 days)

  *   David Ross Sports Village - Monday 9 June (for up to 20 days)

  *   Swimming Pool - Monday 9 June (for up to 5 days)

  *   Jubilee Sports Centre - Tuesday 10 June (for up to 10 days)

  *   Hearing Sciences Building - Thursday 12 June (for up to 10 days)

  *   Chemistry Building - Thursday 19 June (for up to 25 days)

  *   George Green Library - Friday 20 June (for up to 15 days)

  *   Computer Science Building - Monday 23 June (for up to 10 days)

  *   The Exchange - Monday 23 June (for up to 10 days)



What to Expect



To install new WAPs, our teams will be running new cabling through the building, from the wiring centres to the location of the new WAP. While this work is ongoing you may experience:



  *   Drilling as part of the installation process.
  *   Contractors will need access to areas where New WAPs will be installed.
  *   Some work will be carried out at height, with appropriate safety measures in place.
  *   If any WAPs are to be installed in teaching spaces, work will only proceed if the room is clear.



We appreciate your patience and cooperation as we complete these essential upgrades. Our contractors will work to minimise any disruption as much as possible.



If you have any concerns or access requirements, please contact nextgennetwork at nottingham.ac.uk<mailto:nextgennetwork at nottingham.ac.uk>.



Thank you for your support.



The Next Generation Network Team









NGN SharePoint site <https://uniofnottm.sharepoint.com/sites/UoNNextGenerationNetwork>   |   Email us<mailto:UI-DTS-NGN at exmail.nottingham.ac.uk?subject=Feedback>








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From Alfonso.Aragon at nottingham.ac.uk  Wed May 21 09:53:23 2025
From: Alfonso.Aragon at nottingham.ac.uk (Alfonso Aragon-Salamanca)
Date: Wed, 21 May 2025 08:53:23 +0000
Subject: [Astro] [CAPT] Next Generation Network: Upcoming Cabling Works
 at CAPt
In-Reply-To: <AM6PR06MB51128573B8BF08ED2CEEC066A39FA@AM6PR06MB5112.eurprd06.prod.outlook.com>
References: <PAXPR06MB815700CD8E2DE402F6623F26C193A@PAXPR06MB8157.eurprd06.prod.outlook.com>
 <VE1PR06MB69928EF8D98F5BBFFB46AED5C79FA@VE1PR06MB6992.eurprd06.prod.outlook.com>
 <AM6PR06MB51128573B8BF08ED2CEEC066A39FA@AM6PR06MB5112.eurprd06.prod.outlook.com>
Message-ID: <AM6PR06MB5112BA53B30C9F2B010B7AF2A39EA@AM6PR06MB5112.eurprd06.prod.outlook.com>


Dear all,

A brief update on this. As you can see, the cabling team are here already. They will be around until Friday. The plan is to install wireless access points in virtually every room, so the wireless access should be much better.

There should be no interruption of internet access while they work. There will be some drilling and related noise, I am afraid, but I think the wireless internet will improve very significantly.

Thank you for your understanding.

Best wishes,

Alfonso



Alfonso Arag?n-Salamanca

Professor of Astronomy



School of Physics and Astronomy
University of Nottingham

Room B106b, Centre for Astronomy and Particle Theory

University Park

Nottingham, NG7 2RD, UK



+44 (0) 115 95 16230 | alfonso.aragon at nottingham.ac.uk<mailto:alfonso.aragon at nottingham.ac.uk>

URL: http://nottingham.ac.uk/physics/people/alfonso.aragon

General teaching enquiries physics-teaching at nottingham.ac.uk<mailto:physics-teaching at nottingham.ac.uk>



________________________________
From: Alfonso Aragon-salamanca (staff) <ppzaa at exmail.nottingham.ac.uk>
Sent: 20 May 2025 9:41 AM
To: capt at nottingham.ac.uk <capt at nottingham.ac.uk>
Cc: Alfonso Aragon-salamanca (staff) <ppzaa at exmail.nottingham.ac.uk>
Subject: Next Generation Network: Upcoming Cabling Works at CAPt

Dear all,

See message  below. Sorry about the short notice, but I just got it. In summary: as part of Digital and Technology Services' ongoing improvements to enhance connectivity and enable the benefits of the Next Generation Network, work to install additional wireless access points (WAPs) will begin in CAPT on Thursday 22 May (for up to 7 days). Hopefully, this will improve wireless internet access in all parts of the building.

I don't actually think it will take very long (my guess is that they will only need to install a couple of additional WAPs, but all the information I have is in the message below.

There will be only minor disruptions (see below for details), but please let me know if it gets in the way of your work.

Best wishes,

Alfonso



Alfonso Arag?n-Salamanca

Professor of Astronomy



School of Physics and Astronomy
University of Nottingham

Room B106b, Centre for Astronomy and Particle Theory

University Park

Nottingham, NG7 2RD, UK



+44 (0) 115 95 16230 | alfonso.aragon at nottingham.ac.uk<mailto:alfonso.aragon at nottingham.ac.uk>

URL: http://nottingham.ac.uk/physics/people/alfonso.aragon

General teaching enquiries physics-teaching at nottingham.ac.uk<mailto:physics-teaching at nottingham.ac.uk>



From: UI-DTS-NGN <UI-DTS-NGN at exmail.nottingham.ac.uk>
Sent: 16 May 2025 16:36
To: UI-DTS-NGN <UI-DTS-NGN at exmail.nottingham.ac.uk>
Subject: Next Generation Network: Upcoming Cabling Works




 [Image]

   [Graphical user interface  Description automatically generated with low confidence]

  Next Generation Network Update









Next Generation Network: Upcoming Cabling Works



As part of Digital and Technology Services' ongoing improvements to enhance connectivity and enable the benefits of the Next Generation Network, work to install additional wireless access points (WAPs) will begin in the following buildings:



  *   Cripps North Building - Thursday 22 May (for up to 7 days)

  *   The Hemsley - Lenton Mount - Tuesday 27 May (for up to 10 days)

  *   David Ross Sports Village - Monday 9 June (for up to 20 days)

  *   Swimming Pool - Monday 9 June (for up to 5 days)

  *   Jubilee Sports Centre - Tuesday 10 June (for up to 10 days)

  *   Hearing Sciences Building - Thursday 12 June (for up to 10 days)

  *   Chemistry Building - Thursday 19 June (for up to 25 days)

  *   George Green Library - Friday 20 June (for up to 15 days)

  *   Computer Science Building - Monday 23 June (for up to 10 days)

  *   The Exchange - Monday 23 June (for up to 10 days)



What to Expect



To install new WAPs, our teams will be running new cabling through the building, from the wiring centres to the location of the new WAP. While this work is ongoing you may experience:



  *   Drilling as part of the installation process.
  *   Contractors will need access to areas where New WAPs will be installed.
  *   Some work will be carried out at height, with appropriate safety measures in place.
  *   If any WAPs are to be installed in teaching spaces, work will only proceed if the room is clear.



We appreciate your patience and cooperation as we complete these essential upgrades. Our contractors will work to minimise any disruption as much as possible.



If you have any concerns or access requirements, please contact nextgennetwork at nottingham.ac.uk<mailto:nextgennetwork at nottingham.ac.uk>.



Thank you for your support.



The Next Generation Network Team









NGN SharePoint site <https://uniofnottm.sharepoint.com/sites/UoNNextGenerationNetwork>   |   Email us<mailto:UI-DTS-NGN at exmail.nottingham.ac.uk?subject=Feedback>








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From Jesse.Golden-Marx at nottingham.ac.uk  Wed May 21 10:47:21 2025
From: Jesse.Golden-Marx at nottingham.ac.uk (Jesse Golden-Marx)
Date: Wed, 21 May 2025 09:47:21 +0000
Subject: [Astro] [CAPT] Seminar 21/5 Wednesday @C4 -- 15:45 with Sugata
 Kaviraj (Hertfordshire)
In-Reply-To: <OSMPR06MB9931182472A17B540ED8BC37CC9CA@OSMPR06MB9931.eurprd06.prod.outlook.com>
References: <OSMPR06MB9931182472A17B540ED8BC37CC9CA@OSMPR06MB9931.eurprd06.prod.outlook.com>
Message-ID: <OSMPR06MB99315E675B1AACBAF742BE63CC9EA@OSMPR06MB9931.eurprd06.prod.outlook.com>

Hi Everyone,
      We just wanted to remind you all about today's seminar with Prof. Sugata Kaviraj (Hertfordshire).  Hope to see all of you in C4 at 15:45!

Cheers,
Jesse and Luke
________________________________
From: Jesse Golden-Marx (staff)
Sent: Monday, May 19, 2025 9:30 AM
To: capt at nottingham.ac.uk <capt at nottingham.ac.uk>
Subject: Seminar 21/5 Wednesday @C4 -- 15:45 with Sugata Kaviraj (Hertfordshire)

Hi Everyone,

Our seminar this week will be given by Prof. Sugata Kaviraj (Hertfordshire), details below. The seminar will be in C4.

Post-seminar refreshments will be wine and cheese.

Sugata will be arriving by 13:00.

Timings are as usual:

- lunch at Lakeside, leaving CAPT ~13:00 (subsidized for a limited number of students -- let me know before the end of the day tomorrow)
- meet the speaker for postgrads at 15:00, finishing at 15:30
- seminar at 15:45 in C4
- post-seminar wine and cheese at 16:45

This seminar will be conducted in person only.

Best,
Jesse and Luke


Title: Dwarf galaxies in deep-wide surveys: a new frontier in the study of galaxy evolution

Abstract:
Dwarf (M < 10^9.5 MSun) galaxies dominate the galaxy number density, making them critical to a complete understanding of galaxy evolution. However, typical dwarfs are not bright enough to be detectable, outside the very local Universe, in past large surveys like the SDSS, because they are too shallow. The dwarfs that do exist in such surveys have extreme star formation rates, which makes them anomalously blue and unrepresentative of dwarfs in general. New deep-wide surveys from the Hyper Suprime-Cam (HSC), LSST and Euclid will revolutionise our understanding of galaxy evolution, by offering unbiased statistical samples of dwarfs out to at least z?0.4. We demonstrate the game-changing potential of such surveys, by exploring four key aspects of galaxy evolution in the dwarf regime (10^8 MSun < M < 10^9.5 MSun), using several thousand dwarfs in the HSC U/deep footprint in COSMOS: star formation, quenching, morphologies and AGN activity.

The fraction of red/quenched dwarfs in HSC U/Deep is around 40%, a factor of 8 higher than what is concluded using the SDSS. Red dwarfs reside in higher-density environments and closer to nodes, large-scale filaments and massive galaxies. However, the probability of dwarfs being red is most strongly correlated with the distance to the nearest massive galaxy. Dwarfs show three principal morphological types: early-type, late-type and a featureless class which lacks both the central concentrations found in early-types or any spiral structure. Dwarf early-types, unlike their massive counterparts, are likely to be shaped by secular processes (not interactions), while the featureless dwarfs are likely created by baryonic feedback. Finally, broadband variability studies (which will become a key tool for AGN detection in the LSST era) suggest that the incidence of AGN in dwarfs and massive galaxies may be similar, suggesting that AGN could be important in the dwarf regime, as they are in massive galaxies. Dwarfs represent a vast discovery space for new and future deep-wide surveys like Euclid and LSST which promises new insights into how galaxies form and evolve over cosmic time.






Jesse Golden-Marx, Ph.D.
Senior Research Associate

Centre for Astronomy & Particle Theory
School of Physics & Astronomy
University of Nottingham
University Park, Nottingham, UK
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From Simon.Dye at nottingham.ac.uk  Wed May 21 14:38:21 2025
From: Simon.Dye at nottingham.ac.uk (Simon Dye)
Date: Wed, 21 May 2025 13:38:21 +0000
Subject: [Astro] [CAPT] FW: Registration is now open for the XV NExT PhD
 Workshop: Future Horizons in Particle Physics and Cosmology
In-Reply-To: <LNXP265MB1114F3241F71EAC92001D84BEA9EA@LNXP265MB1114.GBRP265.PROD.OUTLOOK.COM>
References: <LNXP265MB1114F3241F71EAC92001D84BEA9EA@LNXP265MB1114.GBRP265.PROD.OUTLOOK.COM>
Message-ID: <VI1PR06MB67365839E245570C86505FDCB49EA@VI1PR06MB6736.eurprd06.prod.outlook.com>



From: studentships at stfc.ac.uk <studentships at stfc.ac.uk>
Date: Wednesday, 21 May 2025 at 13:58
To: studentships at stfc.ac.uk <studentships at stfc.ac.uk>
Subject: Registration is now open for the XV NExT PhD Workshop: Future Horizons in Particle Physics and Cosmology
Dear Head of Department,

Please circulate this email to STFC funded students with an interest in theory, experiment and phenomenology within particle physics, astrophysics and cosmology.

Registration is now open for the XV NExT PhD Workshop: Future Horizons in Particle Physics and Cosmology to be held from 14th - 17th July 2025 at the Cosener's House, Abingdon: https://indico.global/event/14054/

The NExT PhD workshop is the Summer School of the NExT Institute, targeting UK PhD students working in theory, experiment and phenomenology within particle physics, astrophysics and cosmology. In addition to PhD students from the NExT Institute nodes, it is also open to those from all other UK institutions. The programme includes five lecture series on current topics in high energy physics, with an emphasis on cutting edge developments, as well as networking and panel events discussing careers inside and outside of academia, and dedicated sessions for student talks and poster presentations.

Lectures:

Phenomenology of String/M-Theories
Bobby Acharya, International Centre for Theoretical Physics, Trieste, Italy/King?s College London

Beyond WIMPs ? Exploring Novel Dark Matter Candidates
Juri Smirnov, University of Liverpool (UKRI Future Leaders Fellow)

Probing Fundamental Physics with Quantum Sensors
Richard Howl, Royal Holloway University of London

Neutrino Experiments ? Past, Present and Future
Nicola McConkey, Queen Mary University of London (STFC Ernest Rutherford Fellow)

Precision Monte Carlo for the Large Hadron Collider
Jonas Lindert, University of Sussex (former STFC Ernest Rutherford Fellow)

PhD participation and fees:

Accommodation, tuition and catering are free of charge for STFC and self-funded PhD students. We also have similar support for a limited number of other PhD students from the NExT Institute nodes.  The total number of participants is limited to 38, with precedence given to those in year 1, so please try to register promptly to ensure your participation. Due to the limited capacity, registration will be moderated.

Organisers:

Nikolas Kauer (co-chair, Royal Holloway University of London, i.e. RHUL)
Stephen West (co-chair, RHUL)
Ulla Blumenschein (Director of NExT PhD school, Queen Mary University of London)
Neda Darvishi (RHUL)
Jacob Linacre (Rutherford Appleton Laboratory)
Richard Howl (RHUL)

Sponsored by STFC and SEPnet

Kind regards,

Sian

Mrs Sian Giles-Titcombe
Programme Manager - Education, Training and Careers Team
Polaris House, North Star Avenue, Swindon, SN2 1SZ

My working days are normally Tuesday to Friday.

Advance notice of leave: 30th May 2025

[A blue and black logo  Description automatically generated][A grey circle with red text  Description automatically generated]

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From phil.parry at nottingham.ac.uk  Wed May 21 15:12:39 2025
From: phil.parry at nottingham.ac.uk (Phil Parry)
Date: Wed, 21 May 2025 15:12:39 +0100
Subject: [Astro] [CAPT] FAO Odhar users - rebooting for updates this Friday
 morning (23/5/25)
Message-ID: <b3b1c4ea-195f-4e84-8482-663d185fd403@nottingham.ac.uk>

Hi all,

Odhar needs to be rebooted ASAP to install updates and fix a GPU driver 
issue.? I plan to do this this Friday morning (23/5/25) at around 9am, 
the job should take no more than an hour.? Please save your work and 
stop any jobs before then if possible.

If this date/time is a problem for you, let me know.

Thanks,

Phil P


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CAPT at lists.nottingham.ac.uk
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From phil.parry at nottingham.ac.uk  Wed May 21 15:16:46 2025
From: phil.parry at nottingham.ac.uk (Phil Parry)
Date: Wed, 21 May 2025 15:16:46 +0100
Subject: [Astro] [CAPT] FAO Captain users - rebooting for updates Weds
 28/5/25 9am
Message-ID: <8872a242-eb7d-4703-bec4-9d25195b5793@nottingham.ac.uk>

Hi all,

I plan to reboot Captain to install updates this coming Wednesday 
morning (28/5/25) at around 9am, the job should take 1-2 hours but 
please expect the machine to be unavailable all morning.? Please save 
your work and stop any jobs before then.

If this date/time is a problem for you, let me know ASAP and I'll do my 
best to reschedule.

Thanks,

Phil P


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From Joseph.Butler at nottingham.ac.uk  Thu May 22 09:42:02 2025
From: Joseph.Butler at nottingham.ac.uk (Joseph Butler)
Date: Thu, 22 May 2025 08:42:02 +0000
Subject: [Astro] Lunch Talk - 22/5/25
In-Reply-To: <DBC36314-A5D1-43FE-B661-A5775B88E3A9@nottingham.ac.uk>
References: <DBC36314-A5D1-43FE-B661-A5775B88E3A9@nottingham.ac.uk>
Message-ID: <6FDF493D-8AFB-4331-A366-78EADBDA6E94@nottingham.ac.uk>

Reminder of the lunch talks today at 1pm in A113!

Joe

On 19 May 2025, at 9:00, Joseph Butler <ppxjb4 at exmail.nottingham.ac.uk> wrote:

Hi everyone,

This week we have two talks that will be given in our lunch talk slot. The first will be given by Jacob, and the second will be given Sara Santoni, a PhD student from Sapienza University of Rome visiting the department this week. As per usual, this will be at 1pm Thursday in A113, but keep in mind that we?ll be using the full hour. Title and abstracts are below.

Jacob Campbell: Dark matter substructure detection using gravitational lensing and machine learning

Simulations have shown that dark matter not only forms as a large halo around galaxies, but also as a population of smaller subhaloes. The mass function of these subhaloes is dependent on the dark matter model used, therefore constraining this mass function can provide valuable insight into the nature of dark matter. Gravitational lensing provides a promising method for both detecting the presence of subhaloes as well as measuring their masses by searching for perturbations in Einstein rings. The upcoming surveys of Euclid and LSST are expected to provide ~100,000 observations of new lensed systems, therefore it is important to develop a method that allows us to quickly identify and determine the mass of subhaloes. In this talk, I will explore the prospect of using a machine learning based method for subhalo detection in preparation for these surveys, as well as looking at the limitations and potential issues that we expect to face.

Sara Santoni: The Three Hundred project: estimating the dependence of cosmic filaments on galaxy clusters properties from 3D and 2D maps.

Galaxy clusters reside in the densest areas of the universe and are intricately connected to larger structures through the filamentary network of the cosmic web. In this framework, matter flows from lower density areas to higher density ones. As a result, galaxy clusters are deeply influenced by the presence of cosmic filaments attached to them, which can be quantified by a parameter known as connectivity. We benefit from the extensive data set of The Three Hundred hydrodynamical simulation, which provides 324 simulated cosmological regions, centred on massive galaxy clusters. We extract the cosmic web in the outskirts of the massive galaxy clusters, focusing on filaments, from 3D gas density maps and 2D Compton-y, X-rays and optical mock-maps that mimic the properties of known instruments. We investigate the correlation between the presence of filaments and the main properties of galaxy clusters, such as their mass, dynamical state ? expressed in terms of the degree of relaxation and hydrodynamical mass bias ? and the filaments? evolution with redshift. We study the projection effects in the cosmic web identification arising from 3D maps to 2D. Lastly, we compare the skeletons extracted from gas maps with those from mock y and X-rays maps.

Thanks,
Joe

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From phil.parry at nottingham.ac.uk  Fri May 23 09:25:16 2025
From: phil.parry at nottingham.ac.uk (Phil Parry)
Date: Fri, 23 May 2025 09:25:16 +0100
Subject: [Astro] [CAPT] FAO Odhar users - rebooting for updates this
 Friday morning (23/5/25)
In-Reply-To: <b3b1c4ea-195f-4e84-8482-663d185fd403@nottingham.ac.uk>
References: <b3b1c4ea-195f-4e84-8482-663d185fd403@nottingham.ac.uk>
Message-ID: <b8deaafe-ff4f-481c-b8a4-19d9308cdce6@nottingham.ac.uk>

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From Fiona.Sawyer at nottingham.ac.uk  Fri May 23 16:03:55 2025
From: Fiona.Sawyer at nottingham.ac.uk (Fiona Sawyer)
Date: Fri, 23 May 2025 15:03:55 +0000
Subject: [Astro] [CAPT] Cake!
Message-ID: <AM6PR06MB429330D4E8DC76DB57A373ED8598A@AM6PR06MB4293.eurprd06.prod.outlook.com>

Blackberry cheesecake (not vegan, contains almond)
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From Swagat.Mishra at nottingham.ac.uk  Tue May 27 08:00:00 2025
From: Swagat.Mishra at nottingham.ac.uk (Swagat Mishra)
Date: Tue, 27 May 2025 07:00:00 +0000
Subject: [Astro] [CAPT] No Particle Cosmology and Gravity Seminar today
Message-ID: <DB7PR06MB5784FC1168F8E5F886A6BF1D8865A@DB7PR06MB5784.eurprd06.prod.outlook.com>

Dear All,
            We will not have a seminar today due to unavailability any speaker for this date. We will inform you about next week's seminar shortly.

With regards,
-Swagat and Elisa


Swagat Saurav Mishra,

Postdoctoral Research Associate

?

Particle Cosmology Group,

Centre for Astronomy and Particle Theory,

University of Nottingham, Nottingham NG7 2RD, UK.

Website: https://swagatam18.wordpress.com/

Research Link:https://inspirehep.net/authors/1517353

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From Elisa.Todarello at nottingham.ac.uk  Tue May 27 08:00:00 2025
From: Elisa.Todarello at nottingham.ac.uk (Elisa Todarello)
Date: Tue, 27 May 2025 07:00:00 +0000
Subject: [Astro] [CAPT] Particle Cosmology & Gravity Seminar: no seminar
 this week
Message-ID: <PAXPR06MB8421C2FE6211CA01C95D69CADF9AA@PAXPR06MB8421.eurprd06.prod.outlook.com>

Dear All,

Due to a shortage of available speakers, the seminar series will pause for one week. We will resume next week with a seminar by myself.

List of upcoming Seminars:

3rd June: Elisa Todarello (Nottingham)
10th June: Isobel Romero (Cambridge)
17th June: Rachel Gray (Glasgow)
----------------------------------------------------------------------

With Regards,
-Elisa & Swagat


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From Ella.Batchelor at nottingham.ac.uk  Tue May 27 08:40:44 2025
From: Ella.Batchelor at nottingham.ac.uk (Ella Batchelor)
Date: Tue, 27 May 2025 07:40:44 +0000
Subject: [Astro] [CAPT] CAPT Weekly Bulletin (w/c 26-05-25)
Message-ID: <AM6PR06MB426475CDF8745F23A77D5FF39564A@AM6PR06MB4264.eurprd06.prod.outlook.com>

Tuesdays at 11am, CAPT Foyer ? Astro Coffee



Tuesday 27th May at 11.30am, A113 CAPT ? Astronomy Journal Club
---

Wednesday 28th May at 3pm, B13 Physics ? School Colloquium

Hannah Stern (Oxford)

A quantum coherent spin defect in hexagonal boron nitride for quantum technologies

Quantum networks and sensing require solid-state spin-photon interfaces that combine single-photon generation and long-lived spin coherence with scalable device integra?on, ideally at ambient conditions. Despite rapid progress reported across several candidate systems, those possessing quantum coherent single spins at room temperature remain extremely rare. In this talk, I will show quantum coherent control under ambient conditions of a single-photon emitting defect in hexagonal boron nitride. I will show how this carbon-related defect has a spin-triplet electronic ground-state manifold. I will reveal that the spin coherence is governed predominantly by coupling to only a few proximal nuclei and is prolonged by decoupling protocols. Finally, I will show how these results open routes to explore this defect type for nanoscale magnetometry.

Refreshments in C10 to follow.
---

Thursday 29th May at 1pm, A113 CAPT ? Astronomy Lunch Talk

Jade Gray

A 13^CO Detection in a Jet-Driven Molecular Gas Flow


Galaxies undergo significant evolution from the early Universe to the present day; feedback processes are vital ingredients needed to help untangle the details of this transformation. Powerful jets driven by active galactic nuclei (AGN) have a key role in suppressing gas cooling, modulating the cooling gas that infalls into the host galaxy's centre. These radio jets inflate large bubbles, which displace the hot atmosphere and are visible as cavities in X-ray surface brightness. In the central galaxy of Abell 1795, the powerful radio source has inflated two large bubbles, North (N) and South (S) of the AGN. These filaments of molecular gas are exclusively projected around the bubble rims and their smooth velocity gradients imply the gas flows are entrained by the bubbles (Russell et al. 2017). The interplay of molecular gas flows, jets and jet-inflated radio bubbles in AGN feedback remains unknown. Russell et al. (2017) found that the energy required to lift the N filament (10^9 M?) exceeds the N radio bubble's mechanical energy. This result was produced by assuming the Galactic value for the CO-to-H_2 conversion factor, ?_CO,MW, to determine the filament's molecular mass. This talk describes how a detection of 13^CO in Abell 1795?s entrained flow, made by the Atacama Large Millimeter Array (ALMA), was used to measure ?_CO and investigate if the mass was previously overestimated.


Thursday 29th May at 3pm, A113 CAPT ? Particle Cosmology Journal Club

Fridays at 4pm, CAPT Foyer ? CAPT Cakes
---
If you have any events/visitors you would like included in next week?s bulletin, please let me know.


Best wishes

Ella

Ella Batchelor (she/her)
Administrator

School of Physics & Astronomy

University of Nottingham
A112a Centre for Astronomy & Particle Theory
University Park
Nottingham, NG7 2RD

+44 (0) 115 74 86778 |  nottingham.ac.uk<http://nottingham.ac.uk/>

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From Joseph.Butler at nottingham.ac.uk  Tue May 27 12:44:45 2025
From: Joseph.Butler at nottingham.ac.uk (Joseph Butler)
Date: Tue, 27 May 2025 11:44:45 +0000
Subject: [Astro] Lunch Talk - 29/5/25
Message-ID: <12FCF220-7028-4F13-9EF5-12AB7A5C4682@nottingham.ac.uk>

Hi everyone,

This week?s lunch talk will be given by Jade, at 1pm Thursday in A113. Title and abstract are below.
Title: A 13^CO Detection in a Jet-Driven Molecular Gas Flow
Abstract: Galaxies undergo significant evolution from the early Universe to the present day; feedback processes are vital ingredients needed to help untangle the details of this transformation. Powerful jets driven by active galactic nuclei (AGN) have a key role in suppressing gas cooling, modulating the cooling gas that infalls into the host galaxy's centre. These radio jets inflate large bubbles, which displace the hot atmosphere and are visible as cavities in X-ray surface brightness. In the central galaxy of Abell 1795, the powerful radio source has inflated two large bubbles, North (N) and South (S) of the AGN. These filaments of molecular gas are exclusively projected around the bubble rims and their smooth velocity gradients imply the gas flows are entrained by the bubbles (Russell et al. 2017). The interplay of molecular gas flows, jets and jet-inflated radio bubbles in AGN feedback remains unknown. Russell et al. (2017) found that the energy required to lift the N filament (10^9 M?) exceeds the N radio bubble's mechanical energy. This result was produced by assuming the Galactic value for the CO-to-H_2 conversion factor, ?_CO,MW, to determine the filament's molecular mass. This talk describes how a detection of 13^CO in Abell 1795?s entrained flow, made by the Atacama Large Millimeter Array (ALMA), was used to measure ?_CO and investigate if the mass was previously overestimated.

Thanks,
Joe
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From Matteo.Bianconi at nottingham.ac.uk  Tue May 27 13:28:33 2025
From: Matteo.Bianconi at nottingham.ac.uk (Matteo Bianconi)
Date: Tue, 27 May 2025 12:28:33 +0000
Subject: [Astro] Nina is here
Message-ID: <90EA301C-876A-4D5C-99C2-BCDCB3464BD6@nottingham.ac.uk>

Dear All,

Just a quick email to let you know that Nina was born on Thursday. Both her and Natasa are healthy and we already lost quite a lot of sleep :)

I hope tho see you all soon.

Cheers,

Matteo
--
Dr. Matteo Bianconi
Postdoctoral Research Fellow
Centre For Astronomy And Particle Theory
School of Physics and Astronomy
University of Nottingham, University Park
Nottingham, NG7 2RD, England


[2641df94-c837-42f6-898d-27b7f93130ea.JPG]
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From phil.parry at nottingham.ac.uk  Tue May 27 15:50:50 2025
From: phil.parry at nottingham.ac.uk (Phil Parry)
Date: Tue, 27 May 2025 15:50:50 +0100
Subject: [Astro] [CAPT] FAO Captain users - rebooting for updates Weds
 28/5/25 9am
In-Reply-To: <8872a242-eb7d-4703-bec4-9d25195b5793@nottingham.ac.uk>
References: <8872a242-eb7d-4703-bec4-9d25195b5793@nottingham.ac.uk>
Message-ID: <1de0ed1b-37ab-4b9c-b3ff-78f72ab2f267@nottingham.ac.uk>

Hi all, a reminder that Captain will be rebooted for updates tomorrow 
morning.

Cheers

Phil P

On 21/05/2025 15:16, Phil Parry wrote:
> Hi all,
>
> I plan to reboot Captain to install updates this coming Wednesday 
> morning (28/5/25) at around 9am, the job should take 1-2 hours but 
> please expect the machine to be unavailable all morning.? Please save 
> your work and stop any jobs before then.
>
> If this date/time is a problem for you, let me know ASAP and I'll do 
> my best to reschedule.
>
> Thanks,
>
> Phil P
>
>
> _______________________________________________
> CAPT mailing list
> CAPT at lists.nottingham.ac.uk
> https://lists.nottingham.ac.uk/mailman/listinfo/capt
_______________________________________________
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From phil.parry at nottingham.ac.uk  Wed May 28 09:12:43 2025
From: phil.parry at nottingham.ac.uk (Phil Parry)
Date: Wed, 28 May 2025 09:12:43 +0100
Subject: [Astro] [CAPT] FAO Captain users - rebooting for updates Weds
 28/5/25 9am
In-Reply-To: <1de0ed1b-37ab-4b9c-b3ff-78f72ab2f267@nottingham.ac.uk>
References: <8872a242-eb7d-4703-bec4-9d25195b5793@nottingham.ac.uk>
 <1de0ed1b-37ab-4b9c-b3ff-78f72ab2f267@nottingham.ac.uk>
Message-ID: <9f94636e-8d20-4c39-95f5-c61957380183@nottingham.ac.uk>

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From Alfonso.Aragon at nottingham.ac.uk  Wed May 28 14:32:39 2025
From: Alfonso.Aragon at nottingham.ac.uk (Alfonso Aragon-Salamanca)
Date: Wed, 28 May 2025 13:32:39 +0000
Subject: [Astro] School colloquium today
Message-ID: <AM6PR06MB5112F907400EB74803E038D0A367A@AM6PR06MB5112.eurprd06.prod.outlook.com>

Dear all,

Please remember that there is a school colloquium today 3:00 PM in B13 (poster attached for further details). All members of the School are expected to attend. These colloquia (together with lunch talks and astronomy seminars) are compulsory for all PhD students.

I hope I will see you all there.

Best wishes,

Alfonso




Alfonso Arag?n-Salamanca

Professor of Astronomy



School of Physics and Astronomy
University of Nottingham

Room B106b, Centre for Astronomy and Particle Theory

University Park

Nottingham, NG7 2RD, UK



+44 (0) 115 95 16230 | alfonso.aragon at nottingham.ac.uk<mailto:alfonso.aragon at nottingham.ac.uk>

URL: http://nottingham.ac.uk/physics/people/alfonso.aragon

General teaching enquiries physics-teaching at nottingham.ac.uk<mailto:physics-teaching at nottingham.ac.uk>


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From Luke.Conaboy at nottingham.ac.uk  Wed May 28 17:32:07 2025
From: Luke.Conaboy at nottingham.ac.uk (Luke Conaboy)
Date: Wed, 28 May 2025 16:32:07 +0000
Subject: [Astro] [CAPT] Extra astro talk Mon 2nd Jun 13:00 A113 -- George
 Becker (UC Riverside)
Message-ID: <224D19C6-5FF3-4F9B-B47E-3D9A7C680FE1@nottingham.ac.uk>

Hi all,

next week we have an extra talk on Mon at 13:00 in A113, given by George Becker (UC Riverside) who is visiting Mon -- Wed. Title and abstract at the end of the email.

Best,
Luke

==

Exploring the End of Reionization

Studying the epoch of reionization carries a high potential for discovering new things about the IGM and galaxies in the early Universe.  How those discoveries are made, however, depends partly on when reionization occurred.  Over the past few years, multiple lines of evidence have strongly indicated that reionization ended later than previously thought, between redshifts five and six.  This opens a number of observational opportunities, as well as challenges.  I will describe the evidence for late-ending reionization, discuss some of the new ways in this era is being explored observationally, and touch on some of the potential implications for the IGM, high-redshift galaxies, and cosmology.


_______________________________________________
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CAPT at lists.nottingham.ac.uk
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From Joseph.Butler at nottingham.ac.uk  Thu May 29 09:00:00 2025
From: Joseph.Butler at nottingham.ac.uk (Joseph Butler)
Date: Thu, 29 May 2025 08:00:00 +0000
Subject: [Astro] Lunch Talk - 29/5/25
In-Reply-To: <12FCF220-7028-4F13-9EF5-12AB7A5C4682@nottingham.ac.uk>
References: <12FCF220-7028-4F13-9EF5-12AB7A5C4682@nottingham.ac.uk>
Message-ID: <6B312791-7279-4546-8F59-78BFB6C323F8@nottingham.ac.uk>

Hi all,

Reminder of this today at 1pm in A113!

Joe

On 27 May 2025, at 12:44, Joseph Butler <Joseph.Butler at nottingham.ac.uk> wrote:

Hi everyone,

This week??s lunch talk will be given by Jade, at 1pm Thursday in A113. Title and abstract are below.
Title: A 13^CO Detection in a Jet-Driven Molecular Gas Flow
Abstract: Galaxies undergo significant evolution from the early Universe to the present day; feedback processes are vital ingredients needed to help untangle the details of this transformation. Powerful jets driven by active galactic nuclei (AGN) have a key role in suppressing gas cooling, modulating the cooling gas that infalls into the host galaxy's centre. These radio jets inflate large bubbles, which displace the hot atmosphere and are visible as cavities in X-ray surface brightness. In the central galaxy of Abell 1795, the powerful radio source has inflated two large bubbles, North (N) and South (S) of the AGN. These filaments of molecular gas are exclusively projected around the bubble rims and their smooth velocity gradients imply the gas flows are entrained by the bubbles (Russell et al. 2017). The interplay of molecular gas flows, jets and jet-inflated radio bubbles in AGN feedback remains unknown. Russell et al. (2017) found that the energy required to lift the N filament (10^9 M??) exceeds the N radio bubble's mechanical energy. This result was produced by assuming the Galactic value for the CO-to-H_2 conversion factor, ??_CO,MW, to determine the filament's molecular mass. This talk describes how a detection of 13^CO in Abell 1795??s entrained flow, made by the Atacama Large Millimeter Array (ALMA), was used to measure ??_CO and investigate if the mass was previously overestimated.

Thanks,
Joe
--
Astro mailing list
Astro at lists.nottingham.ac.uk
https://lists.nottingham.ac.uk/mailman/listinfo/astro

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From phil.parry at nottingham.ac.uk  Thu May 29 15:19:05 2025
From: phil.parry at nottingham.ac.uk (Phil Parry)
Date: Thu, 29 May 2025 15:19:05 +0100
Subject: [Astro] [CAPT] Fwd: [UoN IT Service Status Page] - Wireless Network
 planned maintenance on 29/05/2025 18:00 - 22:00 - New Maintenance
In-Reply-To: <7229c1a5-1715-4f3d-bb8e-46a8c3cdc503@mailgun.statushub.io>
References: <7229c1a5-1715-4f3d-bb8e-46a8c3cdc503@mailgun.statushub.io>
Message-ID: <c15a3ef1-cd46-4d7b-90aa-18d5b2e15ce8@nottingham.ac.uk>

FYI - maintenance work on our wifi this evening.

Cheers

Phil P


-------- Forwarded Message --------
Subject: 	[UoN IT Service Status Page] - Wireless Network planned 
maintenance on 29/05/2025 18:00 - 22:00 - New Maintenance
Date: 	Thu, 29 May 2025 14:16:24 +0000
From: 	do-not-reply at statushub.io
Reply-To: 	do-not-reply at statushub.io
To: 	phil.parry at nottingham.ac.uk



Uon it service status page 
<https://status.nottingham.ac.uk/?utm_source=notification&utm_medium=email>
New Maintenance Details

Wireless Network planned maintenance on 29/05/2025 18:00 - 22:00

29/05/2025 06:00PM BST - 29/05/2025 10:00PM BST

Please be aware that there will be planned maintenance to Wireless 
Network service for buildings that have been migrated to NGN on Thurs 29 
May 2025 between 18:00 - 22:00.

The service may experience interruptions during this time. Please ensure 
you have saved any data and that you are not using the service during 
this time to avoid any potential data loss.

If you are experiencing issues after this time, please contact the IT 
Service Desk <http://www.nottingham.ac.uk/it-services/help/help.aspx>

Services Affected

? 	[Network] Wireless network

Visit the maintenance page 
<https://status.nottingham.ac.uk/maintenances/128511?utm_source=notification&utm_medium=email> 

Visit the UoN IT Service Status Page hub page 
<https://status.nottingham.ac.uk/?utm_source=notification&utm_medium=email>

Unsubscribe from these alerts 
<https://status.nottingham.ac.uk/subscribers/2e30f4c2de666a422261c76ecffdd76f21b45529/unsubscribe> 
or Edit your subscription 
<https://status.nottingham.ac.uk/subscribers/2e30f4c2de666a422261c76ecffdd76f21b45529/edit> 

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From Ulrike.Kuchner at nottingham.ac.uk  Thu May 29 17:48:11 2025
From: Ulrike.Kuchner at nottingham.ac.uk (Ulrike Kuchner)
Date: Thu, 29 May 2025 16:48:11 +0000
Subject: [Astro] [CAPT] Invitation to join the Science Communication &
 Outreach workshop and talk
Message-ID: <B0D638EC-A56E-4A38-B6D1-AE9F76D64229@nottingham.ac.uk>

Dear all,

Are you interested in Science Communication and Outreach? Would you like to hear from Derek Muller of Veritasium on how he reached over 3 billion views on YouTube?

Join us for SciOUT, a one-day workshop on 11 June in Physics Building B1, featuring talks, discussions, and hands-on sessions. You?re also welcome to attend just the 4pm talk and discussion with Derek and Tom Crawford (@tomrocksmaths) if you can?t make the full day.

Further details are below, including the original invitation from the organisers. You can register HERE<https://docs.google.com/forms/d/e/1FAIpQLSd513Jx4SS_Jxy7oXso9JoxEt9-hbGYTQ9aJ0BnQuD-eMV9Qw/viewform>.

I look forward to seeing some of you there,
Ulli
(On behalf of the SciOUT organisers)




[cid:76EE3599-DFE2-49EA-99DE-8429BD61C3CB]
[cid:141A0D27-D685-41D5-A168-319B73C38FFB]
------------

The SciOUT organising team is excited to invite you to a public talk featuring our guests, Derek Muller (from Veritasium) and Dr. Tom Crawford (@TomRocksMaths). This event will take place on Wednesday the 11th of June, at 4:00 pm in Room B1 of the Physics building.



This exceptional event is open to all students and staff members, providing a fantastic opportunity to engage with leaders in the fields of science communication. Our goal is to encourage a discussion on how universities in the UK can effectively support outreach initiatives and offer insights to students interested in pursuing this career.



The event will include two talks from our guests on effectively communicating science to a broad audience, followed by a Q&A session where attendees can ask questions related to this topic.



For those interested in participating in the full one-day in-person program, please note that space is limited. You can find the registration form linked here<https://docs.google.com/forms/d/e/1FAIpQLSd513Jx4SS_Jxy7oXso9JoxEt9-hbGYTQ9aJ0BnQuD-eMV9Qw/viewform>.



We look forward to welcoming you!



Best wishes,



Silvia, on behalf of the SciOUT organisers



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From Luke.Conaboy at nottingham.ac.uk  Fri May 30 10:03:14 2025
From: Luke.Conaboy at nottingham.ac.uk (Luke Conaboy)
Date: Fri, 30 May 2025 09:03:14 +0000
Subject: [Astro] [CAPT] Invitation to join the Science Communication &
 Outreach workshop and talk
In-Reply-To: <B0D638EC-A56E-4A38-B6D1-AE9F76D64229@nottingham.ac.uk>
References: <B0D638EC-A56E-4A38-B6D1-AE9F76D64229@nottingham.ac.uk>
Message-ID: <62D3F2A1-54FF-4641-88CE-F517B73C3B34@nottingham.ac.uk>

Hi all,

the astro seminar on 11th Jun (Seoyoung Lyla Jung, Oxford) has been shifted back an hour (14:45 start, still in C4) so that people can attend the 4pm SciOUT talk as well.

Best,
Luke

> On 29 May 2025, at 17:48, Ulrike Kuchner <Ulrike.Kuchner at nottingham.ac.uk> wrote:
> 
> Dear all, 
> 
> Are you interested in Science Communication and Outreach? Would you like to hear from Derek Muller of Veritasium on how he reached over 3 billion views on YouTube?
> Join us for SciOUT, a one-day workshop on 11 June in Physics Building B1, featuring talks, discussions, and hands-on sessions. You?re also welcome to attend just the 4pm talk and discussion with Derek and Tom Crawford (@tomrocksmaths) if you can?t make the full day.
> Further details are below, including the original invitation from the organisers. You can register HERE. 
> 
> I look forward to seeing some of you there,
> Ulli
> (On behalf of the SciOUT organisers)
> 
> 
> 
> 
> <IMG_0603.jpeg> <IMG_0602.jpeg> ------------
> 
> The SciOUT organising team is excited to invite you to a public talk featuring our guests, Derek Muller (from Veritasium) and Dr. Tom Crawford (@TomRocksMaths). This event will take place on Wednesday the 11th of June, at 4:00 pm in Room B1 of the Physics building. 
>   This exceptional event is open to all students and staff members, providing a fantastic opportunity to engage with leaders in the fields of science communication. Our goal is to encourage a discussion on how universities in the UK can effectively support outreach initiatives and offer insights to students interested in pursuing this career. 
>   The event will include two talks from our guests on effectively communicating science to a broad audience, followed by a Q&A session where attendees can ask questions related to this topic. 
>   For those interested in participating in the full one-day in-person program, please note that space is limited. You can find the registration form linked here.
>   We look forward to welcoming you! 
>   Best wishes, 
>   Silvia, on behalf of the SciOUT organisers 
>   
> _______________________________________________
> CAPT mailing list
> CAPT at lists.nottingham.ac.uk
> https://lists.nottingham.ac.uk/mailman/listinfo/capt
> -- 
> Astro mailing list
> Astro at lists.nottingham.ac.uk
> https://lists.nottingham.ac.uk/mailman/listinfo/astro

_______________________________________________
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From ppyaf2 at nottingham.ac.uk  Fri May 30 16:07:31 2025
From: ppyaf2 at nottingham.ac.uk (Adela Fernandez)
Date: Fri, 30 May 2025 15:07:31 +0000
Subject: [Astro] [CAPT] Cake Friday!
Message-ID: <DU0PR06MB8429C13F266F5A82DDF8D88D9561A@DU0PR06MB8429.eurprd06.prod.outlook.com>

Cinnamon roll focaccia in the foyer :) (non vegan)

Adela
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