[Astro] [CAPT] Particle Cosmology & Gravity Seminar this week: Keir K Rogers (Imperial College London)

[Elisa Todarello]

Dear all,

Here are the title and abstract for tomorrow's talk by Keir Rogers.

----------------------------------------------------------------------------------------------------------------------------------
Title: Cosmological tests of the nature of dark matter

Abstract: The fundamental nature of dark matter so far eludes direct detection experiments, but it has left its imprint in the cosmic large-scale structure. Extracting this information requires accurate modelling of structure formation for different dark matter theories, careful handling of astrophysical uncertainties and consistent observations in independent cosmological probes. I will review a multi-scale, multi-epoch test of the nature of dark matter combining observations of the cosmic microwave background, galaxy clustering (redshift z < 2), the Lyman-alpha forest (2 < z < 5) and the high-redshift (z > 5) galaxy UV luminosity function from the Hubble and Webb Space Telescopes. I will show that both the S_8 cosmological parameter discrepancy and a new five-sigma tension in inference of the small-scale matter power spectrum can be resolved by a contribution of ultra-light axion dark matter with particle masses ~ 10^-25 eV. I will discuss prospects for adjudicating the viability of dark matter solutions in observations of the galaxy and Milky Way sub-structure distributions in the transformative Vera Rubin Observatory.


________________________________
From: Particles <particles-bounces at lists.nottingham.ac.uk> on behalf of Swagat Mishra <Swagat.Mishra at nottingham.ac.uk>
Sent: 10 February 2025 09:39
To: capt at nottingham.ac.uk <capt at nottingham.ac.uk>; maths-quantum-gravity-group at lists.nottingham.ac.uk <maths-quantum-gravity-group at lists.nottingham.ac.uk>; O365-Gravity Laboratory <o365-gravitylaboratory at UniofNottm.onmicrosoft.com>; ncog-people at nottingham.ac.uk <ncog-people at nottingham.ac.uk>
Cc: Ella Batchelor (staff) <ppzeb1 at exmail.nottingham.ac.uk>; k.rogers24 at imperial.ac.uk <k.rogers24 at imperial.ac.uk>; Drande Patogu <ppydp10 at exmail.nottingham.ac.uk>; Jacob Thornley <ppyjt15 at exmail.nottingham.ac.uk>; Leonora van Deurs <ppylv1 at exmail.nottingham.ac.uk>; bacharya at ictp.it <bacharya at ictp.it>
Subject: [Particles] [CAPT] Particle Cosmology & Gravity Seminar this week: Keir K Rogers (Imperial College London)

Dear All,

                  We have a seminar this week, whose details are provided below -

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

Speaker: Keir K Rogers  (Imperial College London) (In-person Seminar)


            Seminar date: 11th February, Tuesday, 1 pm UK time


            Venue: Seminar Room A 113


             Title and Abstract: Axions/Dark Matter
(To be conveyed soon)

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

Links 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

18th Feb : John Carlton (King's College) : Atom Interferometers

25th Feb: Qi-Xin Xie (Nottingham) : Q-Ball Superradiance

04th March: NO SEMINAR (PhD interviews)

11th March: Diksha Jain (Cambridge) : Amplitudes, Correlators


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

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.nottingham.ac.uk/pipermail/astro/attachments/20250210/a303597b/attachment-0001.htm>
-------------- next part --------------
_______________________________________________
CAPT mailing list
CAPT at lists.nottingham.ac.uk
https://lists.nottingham.ac.uk/mailman/listinfo/capt