March 2
Ari Maller (CUNY)
Cold Flow Disks and Gas Halos Around Galaxies
Clues to how
galaxies are assembled can be found in their gaseous halos. Absorption
systems give us a way to probe galaxy gaseous halos and thus constrain models
of galaxy formation. High-resolution
hydrodynamical simulations show that during cold mode
accretion a cold flow disk builds up around galaxies. The cold flow disk
can be studied with absorption systems that already give some evidence for its
existence. Future observations will be able to show which galaxies are
experiencing cold mode accretion and directly measure the inflow of gas and
angular momentum onto those galaxies.