Date:
Tue, 02/06/200912:15-13:15
Location:
Kaplun Bldg, seminar room, 2nd floor
A SIMPLE survey of Outflows
Low-ionization transitions such as the MgII2796/2803 doublet trace cold gas in the vicinity of galaxies. The exact physical origin of this cold gas traced by QSO absorption lines is debated. Does it trace gas in disks, halos, infalling material, or entrained material in super-nova driven outflows? In addition to recent studies of strong starbursts that have shown that MgII are seen in outflows, with velocities 500--1500 km/s, our clustering analysis has shown that the more massive host-galaxies harbor stronger absorbers. This would imply that MgII clouds are not virialized in the gaseous halos of the host-galaxies. We will describe our SIMPLE program that aims at studying these outflows in 3D.
Low-ionization transitions such as the MgII2796/2803 doublet trace cold gas in the vicinity of galaxies. The exact physical origin of this cold gas traced by QSO absorption lines is debated. Does it trace gas in disks, halos, infalling material, or entrained material in super-nova driven outflows? In addition to recent studies of strong starbursts that have shown that MgII are seen in outflows, with velocities 500--1500 km/s, our clustering analysis has shown that the more massive host-galaxies harbor stronger absorbers. This would imply that MgII clouds are not virialized in the gaseous halos of the host-galaxies. We will describe our SIMPLE program that aims at studying these outflows in 3D.