1. Inicio keyboard_arrow_right
  2. Charlas keyboard_arrow_right
  3. How do galaxies form? New insights from the FIRE and the role of the circumgalactic medium – Claude-André Faucher-Giguère

How do galaxies form? New insights from the FIRE and the role of the circumgalactic medium – Claude-André Faucher-Giguère

How do galaxies form? New insights from the FIRE and the role of the circumgalactic medium Claude-André Faucher-Giguère Northwestern University Abstract: Galaxies are remarkably diverse in their properties, ranging from irregular to disky to elliptical in morphology, and from blue to red in color. At the same time, when analyzed systematically, galaxy populations exhibit striking regularities, with clear trends with mass and redshift. How does this «regular complexity» emerge from the hot Big Bang? I will present results from the FIRE simulations which shed some light onto the processes that shape galaxies. The FIRE zoom-in simulations resolve the multiphase interstellar medium of galaxies and model several different feedback processes (including Type II/Ia supernovae, stellar winds, and radiation) while including the cosmological environment. I will highlight recent results on the formation of disk galaxies, the «burstiness» of star formation, and galactic winds. Our new results indicate that transitions in each of these important phenomena can be simultaneously explained by a phase transition in the inner circumgalactic medium, «inner CGM virialization» (ICV), and arise from the interplay between feedback energy produced on small scales and the physics of halo gas on larger scales.

Horarios: Desde Junio 01, 2021 15:30 hasta Junio 01, 2021 16:30

Publicado por: Patricia Tissera

Información

junio 1, 2021 - junio 1, 2021

schedule 3:30 pm - 4:30 pm
place Lugar

Santiago, Chile

Compartir

Otros eventos

06
Dic

Exploring new frontiers in exoplanetary science with JWST – Néstor Espinoza

diciembre 6, 2022
3:30 pm - 4:30 pm
Seminar Room, Seminar room, Institute of Astrophysics, Campus San Joaquín UC. Zoom (upon request)
29
Nov

Planetary building blocks: What are they made from? When did they form? – Amy Bonsor

noviembre 29, 2022
3:30 pm - 4:30 pm
ZOOM (upon request)
22
Nov

Detailed open cluster chemistry – Laia Casamiquela

noviembre 22, 2022
3:30 pm - 4:30 pm
Seminar Room, Seminar room, Institute of Astrophysics, Campus San Joaquín UC. Zoom (upon request)