[Physics-grads-open] Fwd: Invitation to Participate in Physics and Astronomy Student Seminars (PASS)

[Pooyan Goodarzi]

 Hi all,


For the first PASS talk of the quarter, Prady will talk about his work on
satellite galaxies, and intersections of analytical models and numerical
simulations. Please join us on *October 15th (Monday)* at *noon* (from
12:00 pm to 1:00 pm) in the *Conference Room* (PHYS 3051).


*Pradyumna Sadhu, PhD Student*
Monday, 12:00 pm, Conference Room (PHYS 3051)
*Satellites galaxy abundances in clusters of galaxies within ΛCDM: from
ultrafaints to ellipticals*

Current cosmological simulations lack the resolution to make reliable
predictions for faint and ultra-faint dwarf satellites, which will become a
crucial test of the LCDM model in the upcoming era of the Vera Rubin
Observatory. To this end, we implement a semi-analytical model fitted to
high-resolution controlled simulations to complement the predictions of the
TNG50 cosmological numerical simulations. We focus on 3 clusters with
virial masses ~1e14 Msun, comparable to Virgo and Fornax, and characterize
their satellite population from ultrafaint dwarfs to massive elliptical
galaxies. We find that under the assumption of cuspy dark matter halos such
as NFW profiles, the majority of all satellite galaxies survive within
cluster environments, expecting 10-100 thousand luminous satellites within
the virial radius of such clusters. This is contrary to the results
directly from the simulation where satellites get merged artificially due
to poor numerical resolution. We characterize the radial distribution of
satellites.


If you’re interested in sharing your work as a speaker, please feel free to
add your name to the spreadsheet [Google Sheet
<https://docs.google.com/spreadsheets/d/1N3ncf43jdB6aHYHhyWmyHMycxDg4_phHZXLkQvviO0o/edit?usp=sharing>
].
Best,
Pooyan
Physics and Astronomy Student Seminar (PASS)



On 10/4/24 2:12 PM, Pooyan Goodarzi wrote:

Hello Physics and Astronomy students (and PostDocs),

Just like last year, a group of us is organizing the Physics and Astronomy
Student Seminars (PASS) for this year. It is a weekly student-run seminar
series by members of the Physics and Astronomy department for their peers.
PASS is a fantastic opportunity for you to share your research, learn from
your peers, and practice your presentation skills in a stress-free
environment. Everyone is welcome, both to attend and to sign up as
speakers.

We're in the process of scheduling these seminars at a time that works best
for most.* We would greatly appreciate your help in determining this
by filling out the when2meet
<https://www.when2meet.com/?26869502-61cQX>.* We're
looking to kick things off next week, so please keep that in mind when
you're filling it out.

If you’re interested in sharing your work as a speaker, please feel free to
add your name to the spreadsheet [Google Sheet
<https://docs.google.com/spreadsheets/d/1N3ncf43jdB6aHYHhyWmyHMycxDg4_phHZXLkQvviO0o/edit?usp=sharing>
].

Thanks, and looking forward to seeing you all there!


Best,
Pooyan
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