[Physics-grads-open] Astronomy PASS talk on Monday

[Pooyan Goodarzi]

Hi all,

We will have a PASS talk by Jose on Monday. Please join us at noon (from 
12:00 pm to 1:00 pm) in the Nebula Room (PHYS 3027).


*Jose Benavides , PhD*
Monday, 12:00 pm, Nebula Room (PHYS 3027)
*Morphological Transitions in Simulated Low-Mass Galaxies*

   Disc formation in low-mass galaxies is a key topic in understanding 
galactic evolution and the small-scale structure of the Universe. Unlike 
their more massive counterparts, low-mass galaxies (M_star < 10^10 
M_sun) exhibit significant morphological diversity, with many displaying 
dynamics dominated by velocity dispersion rather than rotation. In this 
study, using data from the FIREbox and FIRE zoom-in cosmological 
simulations, we investigate the physical conditions that govern disc 
formation in such systems, focusing on the interplay between stellar 
feedback and internal gas dynamics. We find that disc formation in 
low-mass galaxies can occur under specific conditions, such as 
sufficiently high halo spin, the presence of cold gas with high angular 
momentum capable of forming rotationally supported young stars, and even 
interactions with satellites that induce disc-like structures. 
Furthermore, we identify a morphological transition from spheroidal to 
disky systems at M_star ~ 10^9 M_sun. These findings offer new insights 
into the mechanisms that drive structure formation in low-mass galaxies, 
with important implications for galaxy formation models and our 
understanding of galactic evolution.



If you’re interested in sharing your work as a speaker, please feel free 
to add your name to this spreadsheet [Google Sheet 
<https://docs.google.com/spreadsheets/d/1N3ncf43jdB6aHYHhyWmyHMycxDg4_phHZXLkQvviO0o/edit?usp=sharing>]. 
Recordings of all the previous talks are available on our website: 
https://ucrpass.arxiv.social


Best,
Pooyan
Physics and Astronomy Student Seminar (PASS)
https://ucrpass.arxiv.social
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