From Ella.Batchelor at nottingham.ac.uk Mon Dec 2 09:30:11 2024 From: Ella.Batchelor at nottingham.ac.uk (Ella Batchelor) Date: Mon, 2 Dec 2024 09:30:11 +0000 Subject: [Astro] [CAPT] CAPT Weekly Bulletin (w/c 02-12-24) Message-ID: Monday 2nd December at 3pm, A113 CAPT ? Theoretical Physics Student Seminar Benjamin Muntz Exploration in the Swampland --- Tuesdays at 11am, CAPT Foyer ? Astro Coffee Tuesday 3rd December at 1pm, A113 CAPT ? Particle Cosmology and Gravity Seminar Emma Albertini (Imperial) Gravity, scattering amplitudes --- Wednesday 4th December at 3.45pm, C4 Physics ? Astronomy Weekly Seminar Francesco D?Eugenio (Kavli, Cambridge) Feedback and quenching at high redshift through JADES and GA-NIFS How galaxies stop forming new stars (quenching) is one of the major open problems in astrophysics. Large spectroscopy survey at z~0-1 have enabled tremendous progress in this field, highlighting the role of AGN in queching massive galaxies. But the advent of JWST is providing new and stringent constraints on the physical processes responsible for quenching, challenging our picture of galaxy formation and quenching. I will start by presenting new results from JWST NIRSpec integral-field spectroscopy of massive, post-starburst galaxies at z~3-5, revealing stellar rotation, a gas-rich CGM, and ongoing AGN feedback. I will then move to lower-mass systems at higher redshifts (possible progenitors) showing evidence of ongoing AGN feedback. I will then discuss internal feedback mechanisms and the open questions about the transition between stochastic star-formation histories and long-term quenching. --- Thursday 5th December at 1pm, A113 CAPT ? Astronomy Lunch Talk Zoe Le Conte (Durham) A JWST investigation into the bar fraction at high redshifts ? > 1 The presence of a stellar bar in a disc galaxy indicates that the galaxy hosts, in its main part, a dynamically settled disc and that bar-driven processes are taking place in shaping its evolution. Studying the cosmic evolution of the bar fraction in disc galaxies is therefore essential to understand galaxy evolution in general. Using the Hubble Space Telescope (HST), previous studies have found that the bar fraction significantly declines from the local Universe to redshifts near one. Using the James Webb Space Telescope (JWST) Cosmic Evolution Early Release Science Survey (CEERS) and the initial public observations for the Public Release Imaging for Extragalactic Research (PRIMER), we extend the studies of the bar fraction in disc galaxies to redshifts 1 ? ? ? 3, i.e., for the first time beyond redshift two. Our sample is present in the Cosmic Assembly Near-IR Deep Extragalactic Legacy Survey (CANDELS) on the Extended Groth Strip (EGS) and Ultra Deep Survey (UDS) HST observations. The sample was visually classified to find the fraction of bars in disc galaxies in two redshift bins, and our results showed the JWST bar fraction to be twice the bar fraction found using bluer HST filters. Specifically, we find that the bar fraction is about 18% at redshifts between one and two, and about 14% at redshifts between two and three. In an upcoming study, we are doubling the sample and extending it to redshift four. We will also evaluate the evolution of the bar length to understand if bars grow with cosmic time. Our results already show that bar-driven evolution commences at early cosmic times and that dynamically settled discs are already present at a lookback time of ? 11 Gyrs. Thursday 5th December at 3pm, A113 CAPT ? Particle Cosmology Journal Club --- Friday 6th December at 2pm, A113 CAPT ? CAPT Coding 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 Administrator Working Hours: Mon-Fri, 8:15am ? 4pm 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 [cid:image001.jpg at 01D8BE0B.72F70A60] Follow us facebook.com/uniofnottingham twitter.com/uniofnottingham youtube.com/nottmuniversity instagram.com/uniofnottingham linkedin.com/company/university-of-nottingham -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 30392 bytes Desc: image001.jpg URL: -------------- next part -------------- _______________________________________________ CAPT mailing list CAPT at lists.nottingham.ac.uk https://lists.nottingham.ac.uk/mailman/listinfo/capt From Michael.Andersonjennings at nottingham.ac.uk Mon Dec 2 10:37:26 2024 From: Michael.Andersonjennings at nottingham.ac.uk (Michael Anderson Jennings) Date: Mon, 2 Dec 2024 10:37:26 +0000 Subject: [Astro] Lunch Talk Message-ID: Hi Everyone, This week's lunch talk will be given by Zoe Le Conte, an external speaker coming from Durham. The talk is on Thursday at 1pm in A113. Title and abstract are below: A JWST investigation into the bar fraction at high redshifts ? > 1 The presence of a stellar bar in a disc galaxy indicates that the galaxy hosts, in its main part, a dynamically settled disc and that bar-driven processes are taking place in shaping its evolution. Studying the cosmic evolution of the bar fraction in disc galaxies is therefore essential to understand galaxy evolution in general. Using the Hubble Space Telescope (HST), previous studies have found that the bar fraction significantly declines from the local Universe to redshifts near one. Using the James Webb Space Telescope (JWST) Cosmic Evolution Early Release Science Survey (CEERS) and the initial public observations for the Public Release Imaging for Extragalactic Research (PRIMER), we extend the studies of the bar fraction in disc galaxies to redshifts 1 ? ? ? 3, i.e., for the first time beyond redshift two. Our sample is present in the Cosmic Assembly Near-IR Deep Extragalactic Legacy Survey (CANDELS) on the Extended Groth Strip (EGS) and Ultra Deep Survey (UDS) HST observations. The sample was visually classified to find the fraction of bars in disc galaxies in two redshift bins, and our results showed the JWST bar fraction to be twice the bar fraction found using bluer HST filters. Specifically, we find that the bar fraction is about 18% at redshifts between one and two, and about 14% at redshifts between two and three. In an upcoming study, we are doubling the sample and extending it to redshift four. We will also evaluate the evolution of the bar length to understand if bars grow with cosmic time. Our results already show that bar-driven evolution commences at early cosmic times and that dynamically settled discs are already present at a lookback time of ? 11 Gyrs. Thanks, Mikey Mikey Anderson Jennings Astronomy PhD Student University of Nottingham Centre for Astronomy and Particle Theory -------------- next part -------------- An HTML attachment was scrubbed... URL: From Luke.Conaboy at nottingham.ac.uk Mon Dec 2 12:00:48 2024 From: Luke.Conaboy at nottingham.ac.uk (Luke Conaboy) Date: Mon, 2 Dec 2024 12:00:48 +0000 Subject: [Astro] [CAPT] Astro seminar Wed 4th Dec 15:45 C5 -- Francesco D'Eugenio (Kavli, Cambridge) Message-ID: Hi all, our final astronomy seminar of the term will be given by Francesco D'Eugenio, talking about feedback and quenching at high redshift. We have booked C5, but if C4 is free we will move there as the lights are better (C4 is booked at the seminar time but may well be empty). 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 == Feedback and quenching at high redshift through JADES and GA-NIFS How galaxies stop forming new stars (quenching) is one of the major open problems in astrophysics. Large spectroscopy survey at z~0-1 have enabled tremendous progress in this field, highlighting the role of AGN in queching massive galaxies. But the advent of JWST is providing new and stringent constraints on the physical processes responsible for quenching, challenging our picture of galaxy formation and quenching. I will start by presenting new results from JWST NIRSpec integral-field spectroscopy of massive, post-starburst galaxies at z~3-5, revealing stellar rotation, a gas-rich CGM, and ongoing AGN feedback. I will then move to lower-mass systems at higher redshifts (possible progenitors) showing evidence of ongoing AGN feedback. I will then discuss internal feedback mechanisms and the open questions about the transition between stochastic star-formation histories and long-term quenching. _______________________________________________ CAPT mailing list CAPT at lists.nottingham.ac.uk https://lists.nottingham.ac.uk/mailman/listinfo/capt From Swagat.Mishra at nottingham.ac.uk Mon Dec 2 13:36:39 2024 From: Swagat.Mishra at nottingham.ac.uk (Swagat Mishra) Date: Mon, 2 Dec 2024 13:36:39 +0000 Subject: [Astro] [CAPT] Particle Cosmology and Gravity Seminar Cancelled: No Seminar this week Message-ID: Dear All, Due to health reasons, our speaker for this week will not be available (she is ill with flu). Therefore, there will be no seminar this Tuesday. Sorry for the late notice. 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- _______________________________________________ CAPT mailing list CAPT at lists.nottingham.ac.uk https://lists.nottingham.ac.uk/mailman/listinfo/capt From phil.parry at nottingham.ac.uk Tue Dec 3 13:21:54 2024 From: phil.parry at nottingham.ac.uk (Phil Parry) Date: Tue, 3 Dec 2024 13:21:54 +0000 Subject: [Astro] [CAPT] Backup information Message-ID: <474ce149-d933-465b-bc01-148e1ed8d666@nottingham.ac.uk> Hi all (PGRs and new people especially!), This is a reminder to think about the data you work with, and to safeguard it from mishaps.? I recommend you keep at least two copies/backups of your data; perhaps on one of our servers (captain, odhar etc), on an external disk if you have one, or on a cloud service such as OneDrive.? If you need any advice, suggestions or help with this, please get in touch.? Note that writable CD's and DVD's can be unreliable for long-term storage. If you're using Linux, then I'd suggest using the 'rsync' command to copy one or more directories to captain.? Some examples of using rsync are at http://www.thegeekstuff.com/2010/09/rsync-command-examples/ . This can be made to run automatically ? see below. A suggested method of backing up to captain is as follows: First, set up password-less login to captain using a SSH key if you haven't already - follow the procedure at https://www.makeuseof.com/connect-without-password-copy-ssh-key-server/ . Make sure you can now ssh into captain without a password ? this is so the backup can be run automatically. Create a shell script to run rsync to captain and/or your external disk: either a one-liner such as: |rsync -a ~ captain:backup #copies your home directory to the directory 'backup' on captain| , or something more complex if necessary. This can be automated (eg run every night or weekend) via a 'cron' task ? see 'Automating rsync backups' at http://www.howtogeek.com/135533/how-to-use-rsync-to-backup-your-data-on-linux/ for an example. Again, please let me know if you need any help or advice regarding any of this. Thanks, Phil P -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- _______________________________________________ CAPT mailing list CAPT at lists.nottingham.ac.uk https://lists.nottingham.ac.uk/mailman/listinfo/capt From Alfonso.Aragon at nottingham.ac.uk Tue Dec 3 14:48:21 2024 From: Alfonso.Aragon at nottingham.ac.uk (Alfonso Aragon-Salamanca) Date: Tue, 3 Dec 2024 14:48:21 +0000 Subject: [Astro] =?windows-1252?q?FW=3A_Pre-announcement_=96_Leverhulme_R?= =?windows-1252?q?esearch_Leadership_Awards?= In-Reply-To: References: Message-ID: Dear all, Please see message below. Candidates interested in applying for the Leverhulme Research Leadership Awards should discuss their application and likely competitiveness with senior colleagues, the Director of Research (Anne Green), and our School Research Development Manager (Teresa Matini). Full details (including the timeline for the internal sift process) are in the email below and/or on the linked Sharepoint page. Key points include: ? The scheme is 'for talented scholars who have launched a university career but who need to build a team to address a distinct research problem'. ? It runs every 3 years, and UoN is only allowed to submit one application. ? Previous calls have funded up to ?1m over 4-5 years, of which 75% must be spent on research staff. ? Successful applicants typically have 5-10+ years of post-PhD experience and include Clare Burrage in 2016 and Nina Hatch in 2022 (as well as Silke Weinfurtner in 2019). 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 URL: http://nottingham.ac.uk/physics/people/alfonso.aragon General teaching enquiries physics-teaching at nottingham.ac.uk ________________________________ From: Cheryl Brand (staff) > Sent: 03 December 2024 14:00 To: Subject: Pre-announcement ? Leverhulme Research Leadership Awards This email has been sent to Faculty APVCs for RKE, Heads of RKE, School Directors of Research and the Research Development Network mailing list. Please distribute further to any relevant research groups or individuals as appropriate. Apologies if, as a result of distribution channels, you receive this email more than once. Dear all, I am contacting you about the forthcoming Leverhulme Research Leadership Awards. This scheme is for talented scholars who have launched a university career but who need to build a team to address a distinct research problem. The scheme runs every three years, with the next call launching in early 2025 with an expected deadline of mid-June 2025. The Leverhulme Trust has let us know they are updating some of the scheme guidance and we will circulate this highlighting the changes as soon as its been published. We can only submit one application so we will be organising an internal sift process. Details and deadlines can be found on our SharePoint page along with information about eligibility, which will be updated once the new scheme guidance is available. Our nominated UoN candidates have been successful in each of the last three Research Leadership Awards calls, so we have 100% success rate for the last 9 years. Please see here for previous winners. Based on the previous call?s guidance (in 2022), the scheme includes: ? Up to ?1m over 4-5 years, of which 75% must be spent on research staff. ? Any discipline is eligible except for "studies of disease, illness or disabilities in animals and humans" and research "to inform clinical practice" or develop medical applications. * Applicants must have at least two years full time or equivalent post-PhD university experience and have a contract that extends beyond the end of the grant award (2030 or 2031). An analysis of successful applicants from the previous call (in 2022) shows that all the winners have significantly more experience than the two-year minimum (see Sharepoint for more information). Based on last call?s guidance, this scheme doesn't fund the lead applicant's time, nor (unusually for Leverhulme) provide funding for replacement teaching. I would advise potential applicants to talk to their Schools/Faculties about support for their research time and implications for their workload. It's possible that some potential applicants may be able to lead the project within their existing research time allocation. Others may want to start in-principle discussions with Schools and Faculties about reduced teaching/admin loads should they be chosen as UoN's candidate and then be successful with the application. If you are interested in applying to this funding opportunity, we advise you to talk to your School Research Director, senior colleagues, and your local Research Development Manager about your application and likely competitiveness. Best wishes, Cheryl Cheryl Brand Strategic Research and KE Development Manager - Charities University of Nottingham cheryl.brand at nottingham.ac.uk Internal: UoN Research Development Support Internal: Leverhulme SharePoint Internal: Wellcome Funding -------------- next part -------------- An HTML attachment was scrubbed... URL: From Luke.Conaboy at nottingham.ac.uk Wed Dec 4 11:10:01 2024 From: Luke.Conaboy at nottingham.ac.uk (Luke Conaboy) Date: Wed, 4 Dec 2024 11:10:01 +0000 Subject: [Astro] [CAPT] Fwd: Astro seminar Wed 4th Dec 15:45 C5 -- Francesco D'Eugenio (Kavli, Cambridge) References: Message-ID: Reminder for our seminar. Leaving for lunch ~12:35 Begin forwarded message: From: Luke Conaboy Subject: Astro seminar Wed 4th Dec 15:45 C5 -- Francesco D'Eugenio (Kavli, Cambridge) Date: 2 December 2024 at 12:00:37 GMT To: capt at nottingham.ac.uk Hi all, our final astronomy seminar of the term will be given by Francesco D'Eugenio, talking about feedback and quenching at high redshift. We have booked C5, but if C4 is free we will move there as the lights are better (C4 is booked at the seminar time but may well be empty). 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 == Feedback and quenching at high redshift through JADES and GA-NIFS How galaxies stop forming new stars (quenching) is one of the major open problems in astrophysics. Large spectroscopy survey at z~0-1 have enabled tremendous progress in this field, highlighting the role of AGN in queching massive galaxies. But the advent of JWST is providing new and stringent constraints on the physical processes responsible for quenching, challenging our picture of galaxy formation and quenching. I will start by presenting new results from JWST NIRSpec integral-field spectroscopy of massive, post-starburst galaxies at z~3-5, revealing stellar rotation, a gas-rich CGM, and ongoing AGN feedback. I will then move to lower-mass systems at higher redshifts (possible progenitors) showing evidence of ongoing AGN feedback. I will then discuss internal feedback mechanisms and the open questions about the transition between stochastic star-formation histories and long-term quenching. -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- _______________________________________________ CAPT mailing list CAPT at lists.nottingham.ac.uk https://lists.nottingham.ac.uk/mailman/listinfo/capt From Joonas.Hirvonen at nottingham.ac.uk Wed Dec 4 20:24:59 2024 From: Joonas.Hirvonen at nottingham.ac.uk (Joonas Hirvonen) Date: Wed, 4 Dec 2024 20:24:59 +0000 Subject: [Astro] [CAPT] Christmas Meal Signup In-Reply-To: <4C239127-2344-4166-966E-9AA5CE56B456@nottingham.ac.uk> References: <4C239127-2344-4166-966E-9AA5CE56B456@nottingham.ac.uk> Message-ID: Hi, I'm very sorry. I hadn't noticed the "no jeans" dress code, and a lunch group said my attire then, with jeans, was fine. I only brought jeans and sweat pants... Would it be OK to join with dark jeans, a purple collared shirt and maybe a tie? Kind regards, Joonas ________________________________ From: Particles on behalf of Joseph Butler Sent: 08 October 2024 12:39 To: capt at nottingham.ac.uk Subject: [Particles] [CAPT] Christmas Meal Signup Hi everyone, The Christmas season is fast approaching, which means it?s time to sign up for the annual CAPT Christmas dinner! Venue & Timings The three-course meal will take place on Thursday 5th December at The Embankment (282-284 Arkwright Street, Nottingham, NG2 2GR). We will be seated in the upstairs function room in this Grade II listed building, with our own private bar + toilets. We have the room from 6:30pm - 11:00pm, with starters being served at 7:30pm. Car parking is available, there is a bus stop (Victoria Embankment) across the road from the venue with lots of services running from town, or alternatively it is a ~15 minute walk from Nottingham train station. Registration & Costs If you would like to attend, please fill out this google form with your allergens/dietary requirements, meal choices, and whether you?d like a plus one: [ugXbgx5W17S5-PU-G7xKj2SrrrzJZnSCTAO5kET1qyEuRA-IBMHaLo6ZupUqrL1lmM8Zo4SDtEM=w1200-h630-p.png] CAPT Christmas Meal forms.gle The deposit will be ?8, which will cover the room hire, decorations, and a drink on arrival! At a later point I will then request the money for the meal itself, which will be ~?35 for the three-course meal or ~?30 for the two-course meal. The deadline for signing up and paying the deposit will be Friday 18th October. Please send this to either my monzo account (the same one that you usually send coffee money to, https://monzo.me/josephbutler62), or alternatively my bank details are the following: Name: Joseph Butler Sort Code: 40-25-22 Account Number: 91460854 Please put your reference as: your first name + surname initial + meal, i.e. JoeBmeal. Menu The dinner menu is attached as a pdf. The winter roots soup (starter), butternut squash tart (main) and berry crumble (dessert) can all be modified to be vegan, but are not by default, so make sure to say you?re vegan in the dietary requirements section of the form if you?d like this. If you have any allergens or other dietary requirements and would like more information on the dishes and/or whether modifications are possible, then please email me so I can ask the venue. Other This year we have decided on a formal dress code, so smart attire please - no jeans! If you have any changes you need to make to your choices/attendance after the deadline, email me as early as possible so there?s the best chance of getting it sorted out. TLDR: Fill out the google form and send me the ?8 deposit by Friday 18th October if you?d like to come to the meal on Thursday 5th December. Looking forward to seeing you all there! Joe & Fiona --------------------------------- ? Joseph Butler ?? Astronomy PhD Student University of Nottingham Centre for Astronomy and Particle Theory -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: ugXbgx5W17S5-PU-G7xKj2SrrrzJZnSCTAO5kET1qyEuRA-IBMHaLo6ZupUqrL1lmM8Zo4SDtEM=w1200-h630-p.png Type: image/png Size: 46280 bytes Desc: ugXbgx5W17S5-PU-G7xKj2SrrrzJZnSCTAO5kET1qyEuRA-IBMHaLo6ZupUqrL1lmM8Zo4SDtEM=w1200-h630-p.png URL: -------------- next part -------------- _______________________________________________ CAPT mailing list CAPT at lists.nottingham.ac.uk https://lists.nottingham.ac.uk/mailman/listinfo/capt From Joseph.Butler at nottingham.ac.uk Wed Dec 4 22:03:50 2024 From: Joseph.Butler at nottingham.ac.uk (Joseph Butler) Date: Wed, 4 Dec 2024 22:03:50 +0000 Subject: [Astro] [CAPT] Christmas Meal Signup In-Reply-To: References: <4C239127-2344-4166-966E-9AA5CE56B456@nottingham.ac.uk> Message-ID: <7D01364C-6B66-4283-942C-D318B68493DD@nottingham.ac.uk> Hi all, I?ll take this opportunity to clarify the dress code for tomorrow, since a lot of people have asked me today what?s okay to wear. The formal dress code was to give people the opportunity to dress up, and if you have that then please do (e.g. suit+tie, dresses, blazers), but if you don?t then it?s fine to just come in something on the smarter side, e.g. black jeans and a shirt. I?ll also include the key details: the meal is at The Embankment (282-284 Arkwright Street, Nottingham, NG2 2GR) on Thursday (tomorrow) evening. We have the whole upstairs booked from 6:30pm with starters being served at 7:30pm, so probably aim to arrive between 6:30-7:00pm. Car parking is available at the venue, there is a bus stop (Victoria Embankment) across the road from the venue with lots of services running from town, or alternatively it is a ~15 minute walk from Nottingham train station. There are namecards at everyone?s seats with the food orders on the back, so don?t worry if you don?t remember what you ordered. See you all tomorrow! Joe On 4 Dec 2024, at 20:24, Joonas Hirvonen (staff) wrote: Hi, I'm very sorry. I hadn't noticed the "no jeans" dress code, and a lunch group said my attire then, with jeans, was fine. I only brought jeans and sweat pants... Would it be OK to join with dark jeans, a purple collared shirt and maybe a tie? Kind regards, Joonas ________________________________ From: Particles on behalf of Joseph Butler Sent: 08 October 2024 12:39 To: capt at nottingham.ac.uk Subject: [Particles] [CAPT] Christmas Meal Signup Hi everyone, The Christmas season is fast approaching, which means it?s time to sign up for the annual CAPT Christmas dinner! Venue & Timings The three-course meal will take place on Thursday 5th December at The Embankment (282-284 Arkwright Street, Nottingham, NG2 2GR). We will be seated in the upstairs function room in this Grade II listed building, with our own private bar + toilets. We have the room from 6:30pm - 11:00pm, with starters being served at 7:30pm. Car parking is available, there is a bus stop (Victoria Embankment) across the road from the venue with lots of services running from town, or alternatively it is a ~15 minute walk from Nottingham train station. Registration & Costs If you would like to attend, please fill out this google form with your allergens/dietary requirements, meal choices, and whether you?d like a plus one: CAPT Christmas Meal forms.gle The deposit will be ?8, which will cover the room hire, decorations, and a drink on arrival! At a later point I will then request the money for the meal itself, which will be ~?35 for the three-course meal or ~?30 for the two-course meal. The deadline for signing up and paying the deposit will be Friday 18th October. Please send this to either my monzo account (the same one that you usually send coffee money to, https://monzo.me/josephbutler62), or alternatively my bank details are the following: Name: Joseph Butler Sort Code: 40-25-22 Account Number: 91460854 Please put your reference as: your first name + surname initial + meal, i.e. JoeBmeal. Menu The dinner menu is attached as a pdf. The winter roots soup (starter), butternut squash tart (main) and berry crumble (dessert) can all be modified to be vegan, but are not by default, so make sure to say you?re vegan in the dietary requirements section of the form if you?d like this. If you have any allergens or other dietary requirements and would like more information on the dishes and/or whether modifications are possible, then please email me so I can ask the venue. Other This year we have decided on a formal dress code, so smart attire please - no jeans! If you have any changes you need to make to your choices/attendance after the deadline, email me as early as possible so there?s the best chance of getting it sorted out. TLDR: Fill out the google form and send me the ?8 deposit by Friday 18th October if you?d like to come to the meal on Thursday 5th December. Looking forward to seeing you all there! Joe & Fiona --------------------------------- ? Joseph Butler ?? Astronomy PhD Student University of Nottingham Centre for Astronomy and Particle Theory -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- _______________________________________________ CAPT mailing list CAPT at lists.nottingham.ac.uk https://lists.nottingham.ac.uk/mailman/listinfo/capt From Michael.Andersonjennings at nottingham.ac.uk Thu Dec 5 10:12:13 2024 From: Michael.Andersonjennings at nottingham.ac.uk (Michael Anderson Jennings) Date: Thu, 5 Dec 2024 10:12:13 +0000 Subject: [Astro] Lunch Talk In-Reply-To: References: Message-ID: Hi Everyone, Reminder of the lunch talk today at 1pm in A113. We will be going for a lunch with the speaker at 11:45am, most likely to Portland. If you would like to join us, meet in the capt foyer. Thanks, Mikey Sent from Outlook for iOS ________________________________ From: Michael Anderson Jennings Sent: Monday, December 2, 2024 10:37:26 AM To: astro at nottingham.ac.uk Cc: LE CONTE, ZOE A. Subject: Lunch Talk Hi Everyone, This week's lunch talk will be given by Zoe Le Conte, an external speaker coming from Durham. The talk is on Thursday at 1pm in A113. Title and abstract are below: A JWST investigation into the bar fraction at high redshifts ? > 1 The presence of a stellar bar in a disc galaxy indicates that the galaxy hosts, in its main part, a dynamically settled disc and that bar-driven processes are taking place in shaping its evolution. Studying the cosmic evolution of the bar fraction in disc galaxies is therefore essential to understand galaxy evolution in general. Using the Hubble Space Telescope (HST), previous studies have found that the bar fraction significantly declines from the local Universe to redshifts near one. Using the James Webb Space Telescope (JWST) Cosmic Evolution Early Release Science Survey (CEERS) and the initial public observations for the Public Release Imaging for Extragalactic Research (PRIMER), we extend the studies of the bar fraction in disc galaxies to redshifts 1 ? ? ? 3, i.e., for the first time beyond redshift two. Our sample is present in the Cosmic Assembly Near-IR Deep Extragalactic Legacy Survey (CANDELS) on the Extended Groth Strip (EGS) and Ultra Deep Survey (UDS) HST observations. The sample was visually classified to find the fraction of bars in disc galaxies in two redshift bins, and our results showed the JWST bar fraction to be twice the bar fraction found using bluer HST filters. Specifically, we find that the bar fraction is about 18% at redshifts between one and two, and about 14% at redshifts between two and three. In an upcoming study, we are doubling the sample and extending it to redshift four. We will also evaluate the evolution of the bar length to understand if bars grow with cosmic time. Our results already show that bar-driven evolution commences at early cosmic times and that dynamically settled discs are already present at a lookback time of ? 11 Gyrs. Thanks, Mikey Mikey Anderson Jennings Astronomy PhD Student University of Nottingham Centre for Astronomy and Particle Theory -------------- next part -------------- An HTML attachment was scrubbed... URL: From Bradley.March at nottingham.ac.uk Thu Dec 5 14:33:47 2024 From: Bradley.March at nottingham.ac.uk (Bradley March) Date: Thu, 5 Dec 2024 14:33:47 +0000 Subject: [Astro] =?utf-8?b?W0NBUFRdIENBUFQgQ29kaW5nIENsdWIgKENDQykg4oCT?= =?utf-8?q?_Code_Review_Session_This_Week?= Message-ID: Hello CCC?ers, Thank you to everyone who joined last week?s session on Astropy, and a special thanks to Kellie for sharing her expertise! This week, we?re taking a slightly different approach?perhaps a good fit given the Christmas celebrations happening later tonight. Instead of a structured topic, we?ll run a code review session. Bring along some code you?re currently working on (or have worked on in the past), and we?ll collaborate to improve its structure, reformat it, or explore ways to optimize it. Looking forward to seeing you all on Friday at 2 PM in A113! P.S. I won?t be available next Friday as it?s my birthday! Since many people will likely be heading off the following week, this could end up being the final session of the term ?. If you?d like to lead a session next week, or if you have suggestions for next term?s sessions, please don?t hesitate to get in touch. Best regards, Bradley -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- _______________________________________________ CAPT mailing list CAPT at lists.nottingham.ac.uk https://lists.nottingham.ac.uk/mailman/listinfo/capt From Laura.Sberna at nottingham.ac.uk Fri Dec 6 10:37:33 2024 From: Laura.Sberna at nottingham.ac.uk (Laura Sberna) Date: Fri, 6 Dec 2024 10:37:33 +0000 Subject: [Astro] [CAPT] Tales of Gravity in Nottingham -- Save the date Message-ID: <5EE37014-ED16-4B5B-A9BB-BFE27A75F304@nottingham.ac.uk> Dear all, We are happy to announce that on April 7-11, 2025 we will host the workshop Tales of Gravity in Nottingham. The conference will celebrate the opening of the Nottingham Centre of Gravity (NCoG), and cover a range of areas including fundamental physics, cosmology, relativistic astro, data and modelling, mathematics and experiment. Two days of the meeting will be run in conjunction with UK Cosmology. A preliminary website and list of speakers can be found here: https://indico.cern.ch/event/1484427/. We will let you know when registrations officially open, but we wanted to share the dates with you so that you can mark them on your calendar. Best, Laura -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- _______________________________________________ CAPT mailing list CAPT at lists.nottingham.ac.uk https://lists.nottingham.ac.uk/mailman/listinfo/capt From Bradley.March at nottingham.ac.uk Fri Dec 6 13:50:52 2024 From: Bradley.March at nottingham.ac.uk (Bradley March) Date: Fri, 6 Dec 2024 13:50:52 +0000 Subject: [Astro] =?utf-8?b?W0NBUFRdIENBUFQgQ29kaW5nIENsdWIgKENDQykg4oCT?= =?utf-8?q?_Code_Review_Session_This_Week?= In-Reply-To: References: Message-ID: Reminder of the CCC today & an update that it will start 10 minutes late (in ~20mins). ________________________________ From: Particles on behalf of Bradley March Sent: Thursday, December 5, 2024 2:33:47 PM To: capt at nottingham.ac.uk Subject: [Particles] [CAPT] CAPT Coding Club (CCC) ? Code Review Session This Week Hello CCC?ers, Thank you to everyone who joined last week?s session on Astropy, and a special thanks to Kellie for sharing her expertise! This week, we?re taking a slightly different approach?perhaps a good fit given the Christmas celebrations happening later tonight. Instead of a structured topic, we?ll run a code review session. Bring along some code you?re currently working on (or have worked on in the past), and we?ll collaborate to improve its structure, reformat it, or explore ways to optimize it. Looking forward to seeing you all on Friday at 2 PM in A113! P.S. I won?t be available next Friday as it?s my birthday! Since many people will likely be heading off the following week, this could end up being the final session of the term ?. If you?d like to lead a session next week, or if you have suggestions for next term?s sessions, please don?t hesitate to get in touch. Best regards, Bradley -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- _______________________________________________ CAPT mailing list CAPT at lists.nottingham.ac.uk https://lists.nottingham.ac.uk/mailman/listinfo/capt From Swagat.Mishra at nottingham.ac.uk Fri Dec 6 16:00:17 2024 From: Swagat.Mishra at nottingham.ac.uk (Swagat Mishra) Date: Fri, 6 Dec 2024 16:00:17 +0000 Subject: [Astro] [CAPT] Cake Message-ID: Hi Everyone, Some vegan and nonvegan cafe downstairs, with tea and coffee. (Could not bake this time, so cakes are from the supermarket ? ) 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- _______________________________________________ CAPT mailing list CAPT at lists.nottingham.ac.uk https://lists.nottingham.ac.uk/mailman/listinfo/capt From Swagat.Mishra at nottingham.ac.uk Mon Dec 9 08:00:00 2024 From: Swagat.Mishra at nottingham.ac.uk (Swagat Mishra) Date: Mon, 9 Dec 2024 08:00:00 +0000 Subject: [Astro] [CAPT] Particle Cosmology and Gravity Seminar this week: Bruno Alexandre (Imperial College London) Message-ID: Dear All, Here are the details of the seminar this week - Speaker: Bruno Alexandre (Imperial College London) Seminar Date: 10th December, Tuesday 1.00 pm Venue: Seminar Room A 113 (Cripps North Building) Title: Higgs Mechanism for the Ashtekar Self-Dual Connection Abstract: We introduce the Higgs mechanism for the self-dual spin connection (also known as the Ashtekar connection), using the Plebanski formulation of gravity. We develop our formalism within the framework of the chiral action and derive the equations of motion of the theory. One particular test model is explored: since anisotropy is an intrinsic property of the theory, a modified version of the spatially flat Bianchi I model with two different scale factors is considered. We apply our formalism and derive the Friedmann equations which regulate the scale factors and the Higgs field. We also present a Proca-like term for the connection, which when reduced to minisuperspace with a positive ? yields a De Sitter universe with an effective cosmological constant that depends on the mass of the gauge fields. We finally investigate the effect of these mass terms on gravitational waves and find that the wave equation remains unchanged relatively to GR; however the Weyl tensor is scaled by a constant which depends on the mass of the connection components. 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 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- _______________________________________________ CAPT mailing list CAPT at lists.nottingham.ac.uk https://lists.nottingham.ac.uk/mailman/listinfo/capt From Michael.Andersonjennings at nottingham.ac.uk Mon Dec 9 12:05:03 2024 From: Michael.Andersonjennings at nottingham.ac.uk (Michael Anderson Jennings) Date: Mon, 9 Dec 2024 12:05:03 +0000 Subject: [Astro] Lunch Talk Message-ID: Hi Everyone, This week's lunch talk will be the last of this calendar year and will be given by an external speaker Harry Stephenson (Lancaster University), it will be on Thursday at 1pm in A113. Title and Abstract are below. Anisotropic Quenching in ???.? clusters: AGN or Large Scale Structure The mechanisms that suppress star formation in cluster galaxies are numerous, and analysing their impact is crucial to understanding galaxy evolution. Recently, studies have shown that the quenching of satellite galaxies is dependent on their orientation angle to the brightest cluster galaxy (BCG), whereby galaxies along the BCG major axis have significantly reduced star formation compared to those that reside along the minor axis. This has been dubbed ?anisotropic quenching? or ?angular conformity?. To probe this anisotropic quenching signal, we used Subaru data of Cluster Lensing And Supernovae survey with Hubble clusters to analyse the colour of ? 7,000 satellites, and passive galaxy fractions, at z = 0.2 ? 0.5 as a function of their orientation angle from the BCG.I will discuss our detection of an anisotropic quenching signal out to cluster-centric radii of 3R200 in both satellite colour and passive galaxy fraction against orientation angle that peaks along the major axis. The amplitude of this signal is the largest observed in studies of anisotropic quenching. We find a peak in the amplitude at ? 1.25R200 for both satellite colour and passive galaxy fraction. We also investigated if the increased quenching along the major axis is a reflection of the increased density of galaxies. We find that passive galaxy fractions are significantly higher along the major axis for fixed values of local density, suggesting another mechanism is preferentially acting along the major axis. We believe that this signal is caused by preprocessing in filaments that feed satellites into the cluster along the BCG major axis. Thanks, Mikey Mikey Anderson Jennings Astronomy PhD Student University of Nottingham Centre for Astronomy and Particle Theory -------------- next part -------------- An HTML attachment was scrubbed... URL: From Ella.Batchelor at nottingham.ac.uk Tue Dec 10 10:00:21 2024 From: Ella.Batchelor at nottingham.ac.uk (Ella Batchelor) Date: Tue, 10 Dec 2024 10:00:21 +0000 Subject: [Astro] [CAPT] CAPT Weekly Bulletin (w/c: 10-12-24) Message-ID: Tuesdays at 11am, CAPT Foyer ? Astro Coffee Tuesday 10th December at 1pm, A113 CAPT ? Particle Cosmology and Gravity Seminar Bruno Alexandre (Imperial College London) Higgs Mechanism for the Ashtekar Self-Dual Connection We introduce the Higgs mechanism for the self-dual spin connection (also known as the Ashtekar connection), using the Plebanski formulation of gravity. We develop our formalism within the framework of the chiral action and derive the equations of motion of the theory. One particular test model is explored: since anisotropy is an intrinsic property of the theory, a modified version of the spatially flat Bianchi I model with two different scale factors is considered. We apply our formalism and derive the Friedmann equations which regulate the scale factors and the Higgs field. We also present a Proca-like term for the connection, which when reduced to minisuperspace with a positive ? yields a De Sitter universe with an effective cosmological constant that depends on the mass of the gauge fields. We finally investigate the effect of these mass terms on gravitational waves and find that the wave equation remains unchanged relatively to GR; however the Weyl tensor is scaled by a constant which depends on the mass of the connection components. 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 --- Thursday 12th December at 1pm, A113 CAPT ? Astronomy Lunch Talk Harry Stephenson (Lancaster) Anisotropic Quenching in ???.? clusters: AGN or Large Scale Structure? The mechanisms that suppress star formation in cluster galaxies are numerous, and analysing their impact is crucial to understanding galaxy evolution. Recently, studies have shown that the quenching of satellite galaxies is dependent on their orientation angle to the brightest cluster galaxy (BCG), whereby galaxies along the BCG major axis have significantly reduced star formation compared to those that reside along the minor axis. This has been dubbed ?anisotropic quenching? or ?angular conformity?. To probe this anisotropic quenching signal, we used Subaru data of Cluster Lensing And Supernovae survey with Hubble clusters to analyse the colour of ? 7,000 satellites, and passive galaxy fractions, at z = 0.2 ? 0.5 as a function of their orientation angle from the BCG. I will discuss our detection of an anisotropic quenching signal out to cluster-centric radii of 3R200 in both satellite colour and passive galaxy fraction against orientation angle that peaks along the major axis. The amplitude of this signal is the largest observed in studies of anisotropic quenching. We find a peak in the amplitude at ? 1.25R200 for both satellite colour and passive galaxy fraction. We also investigated if the increased quenching along the major axis is a reflection of the increased density of galaxies. We find that passive galaxy fractions are significantly higher along the major axis for fixed values of local density, suggesting another mechanism is preferentially acting along the major axis. We believe that this signal is caused by preprocessing in filaments that feed satellites into the cluster along the BCG major axis. Thursday 12th December 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 [cid:image001.png at 01DB4AE2.C4730C20] Follow us facebook.com/uniofnottingham twitter.com/uniofnottingham youtube.com/nottmuniversity instagram.com/uniofnottingham linkedin.com/company/university-of-nottingham -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.png Type: image/png Size: 190221 bytes Desc: image001.png URL: -------------- next part -------------- _______________________________________________ CAPT mailing list CAPT at lists.nottingham.ac.uk https://lists.nottingham.ac.uk/mailman/listinfo/capt From Michael.Andersonjennings at nottingham.ac.uk Thu Dec 12 09:44:45 2024 From: Michael.Andersonjennings at nottingham.ac.uk (Michael Anderson Jennings) Date: Thu, 12 Dec 2024 09:44:45 +0000 Subject: [Astro] Lunch Talk In-Reply-To: References: Message-ID: Hi Everyone, Reminder of the lunch talk today at 1pm in A113. If anyone wants to meet Harry before the talk we will be going for lunch at 11:45am, meeting in the CAPT foyer. Also, the paper the talk is based on has been put on the Arxiv (https://arxiv.org/pdf/2412.07834) this morning and you might notice our very own Joe Butler is one of the co-authors. Thanks, Mikey Mikey Anderson Jennings Astronomy PhD Student University of Nottingham Centre for Astronomy and Particle Theory ________________________________ From: Michael Anderson Jennings Sent: 09 December 2024 12:05 PM To: astro at nottingham.ac.uk Cc: h.stephenson at lancaster.ac.uk Subject: Lunch Talk Hi Everyone, This week's lunch talk will be the last of this calendar year and will be given by an external speaker Harry Stephenson (Lancaster University), it will be on Thursday at 1pm in A113. Title and Abstract are below. Anisotropic Quenching in ???.? clusters: AGN or Large Scale Structure The mechanisms that suppress star formation in cluster galaxies are numerous, and analysing their impact is crucial to understanding galaxy evolution. Recently, studies have shown that the quenching of satellite galaxies is dependent on their orientation angle to the brightest cluster galaxy (BCG), whereby galaxies along the BCG major axis have significantly reduced star formation compared to those that reside along the minor axis. This has been dubbed ?anisotropic quenching? or ?angular conformity?. To probe this anisotropic quenching signal, we used Subaru data of Cluster Lensing And Supernovae survey with Hubble clusters to analyse the colour of ? 7,000 satellites, and passive galaxy fractions, at z = 0.2 ? 0.5 as a function of their orientation angle from the BCG.I will discuss our detection of an anisotropic quenching signal out to cluster-centric radii of 3R200 in both satellite colour and passive galaxy fraction against orientation angle that peaks along the major axis. The amplitude of this signal is the largest observed in studies of anisotropic quenching. We find a peak in the amplitude at ? 1.25R200 for both satellite colour and passive galaxy fraction. We also investigated if the increased quenching along the major axis is a reflection of the increased density of galaxies. We find that passive galaxy fractions are significantly higher along the major axis for fixed values of local density, suggesting another mechanism is preferentially acting along the major axis. We believe that this signal is caused by preprocessing in filaments that feed satellites into the cluster along the BCG major axis. Thanks, Mikey Mikey Anderson Jennings Astronomy PhD Student University of Nottingham Centre for Astronomy and Particle Theory -------------- next part -------------- An HTML attachment was scrubbed... URL: From Jennifer.Feron at nottingham.ac.uk Fri Dec 13 15:59:52 2024 From: Jennifer.Feron at nottingham.ac.uk (Jennifer Feron) Date: Fri, 13 Dec 2024 15:59:52 +0000 Subject: [Astro] CAKE Message-ID: Chocolate Yuel log and vegan mince pies are in the foyer, curtesy of Mikey! ? -------------- next part -------------- An HTML attachment was scrubbed... URL: From Jesse.Golden-Marx at nottingham.ac.uk Fri Dec 20 15:59:26 2024 From: Jesse.Golden-Marx at nottingham.ac.uk (Jesse Golden-Marx) Date: Fri, 20 Dec 2024 15:59:26 +0000 Subject: [Astro] [CAPT] CAKE! Message-ID: Hi Everyone, For those of you who braved the cold office today, I made vegan chocolate chunk cookies! Come down to the foyer to enjoy the last Cake Friday of 2024! Happy Holidays, Jesse Jesse Golden-Marx, Ph.D. Senior Research Associate Centre for Astronomy & Particle Theory School of Physics & Astronomy University of Nottingham University Park, Nottingham, UK -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- _______________________________________________ CAPT mailing list CAPT at lists.nottingham.ac.uk https://lists.nottingham.ac.uk/mailman/listinfo/capt