Kinetic Luminosity of Quasar Outflows and its Implications to AGN  Feedback: HST/COS Observations

TYPEAstrophysics Seminar
Speaker:Prof. Nahum Arav
Affiliation:Virginia Tech Department of Physics
Location:Lidow 620

Sub-relativistic outflows are seen as blueshifted absorption
troughs in the spectra of roughly one third of all quasars. I will
describe a recent breakthrough, enabled by HST/COS observations, that
yield the mass flux and kinetic luminosity for the majority of
these outflows. The derived values suggest that quasar
absorption outflows have a profound effect on the host galaxy.