Facebook Twitter Instagram YouTube

On the neutral gas accretion rates of low-redshift galaxies

Event Details

Event Dates: 

Wednesday, June 6, 2012 - 6:00am

Speaker Name(s): 

Philip Richter

Speaker Affiliation(s): 

University of Potsdam
Seminar Type/Subject

Event Details & Abstract: 

The mode of gas accretion (cold mode vs. hot mode) represents a crucial aspect in galaxy formation models. Observations indicate that galaxies at low z are surrounded by substantial amounts of neutral and ionized gas that (at least partly) trace the infall of intergalactic matter onto galaxies. In this talk I will present recent results from multi-wavelength studies that aim at estimating the gas accretion rates of galaxies in the local Universe. I will further present a new theoretical model of the gas distribution around low-z galaxies that links the absorption cross section of circumgalactic gas with the statistical properties of QSO absorption-line systems.