Calendar

Apr
21
Wed
Astro-ph Discussion
Apr 21 @ 1:00 pm – 1:30 pm
Astro-ph Discussion @ Remote
Apr
23
Fri
Astro-ph Discussion
Apr 23 @ 11:30 am – 12:00 pm
Astro-ph Discussion @ Remote
Colloquium: Jorge Moreno (host: Priscilla Holguin Luna)
Apr 23 @ 3:00 pm – 4:00 pm
Colloquium: Jorge Moreno (host: Priscilla Holguin Luna) @ BX102

Spatially Resolved Galaxy Interactions

Jorge Moreno, Pomona College

The focus of this talk is to address the spatial structure and evolution of star formation and the interstellar medium ISM in interacting galaxies. We use an extensive suite of parsec-scale galaxy merger simulations, which employs the “Feedback In Realistic Environments” model FIRE-2. This framework resolves star formation, feedback processes, and the multi-phase structure of the ISM. We focus on the galaxy-pair stages of interaction. We find that close encounters substantially augment cool HI and cold-dense H2 gas budgets, elevating the formation of new stars as a result. We also find that galaxies with elevated global star formation rate SFR experience intense nuclear SFR enhancement, driven by high levels of either star formation efficiency SFE or available cold-dense gas fuel. Galaxies with suppressed global SFR also contain a nuclear cold-dense gas reservoir, but low SFE levels diminish SFR in the central region. Our numerical predictions underscore the need of substantially larger, and/or merger-dedicated, spatially-resolved integral-field spectroscopic galaxy surveys — capable of examining vast and diverse samples of interacting systems — coupled with multi-wavelength campaigns aimed to capture their internal ISM structure. If time allows, I will also speak of dark matter free dwarf galaxies in FIREBox, a cosmological simulation of galaxy formation with FIRE. https://arxiv.org/abs/2009.11289

https://nmsu.zoom.us/j/96153330256

Apr
28
Wed
Astro-ph Discussion
Apr 28 @ 1:00 pm – 1:30 pm
Astro-ph Discussion @ Remote
Apr
30
Fri
Astro-ph Discussion
Apr 30 @ 11:30 am – 12:00 pm
Astro-ph Discussion @ Remote
Colloquium: OPEN
Apr 30 @ 3:00 pm – 4:00 pm
Colloquium: OPEN @ BX102

Colloquium Title

Colloquium Speaker Name, Affiliation

Abstract text

May
5
Wed
Astro-ph Discussion
May 5 @ 1:00 pm – 1:30 pm
Astro-ph Discussion @ Remote
May
7
Fri
Colloquium: Mariarita Murabito (Host: Juie Shetye)
May 7 @ 9:00 am – 10:00 am
Colloquium: Mariarita Murabito (Host: Juie Shetye) @ BX102

Colloquium Title

Colloquium Speaker Name, Affiliation

Abstract text

https://nmsu.zoom.us/j/96153330256

Astro-ph Discussion
May 7 @ 11:30 am – 12:00 pm
Astro-ph Discussion @ Remote