Colloquium: Nov. 29, 2017 at 4 PM

WFU Physics Colloquium

TITLE: “Kinetic Luminosity of Quasar Outflows and its Implications to Galaxy Formation”

SPEAKER:Professor Nahum Arav
Department of Physics
Virginia Tech
Blacksburg, VA

TIME: Wed. Nov. 29, 2017 at 4:00 PM

PLACE: George P. Williams, Jr. Lecture Hall, (Olin 101)


There will be a reception with refreshments at 3:30 PM in the lounge. All interested persons are cordially invited to attend.




Sub-relativistic mass-ejection outflows are seen as blue-shifted absorption troughs in the spectra of roughly one third of all quasars. I will describe recent results from observations with the Very Large
Telescope and the Hubble Space Telescope, 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 formation of their host galaxy.

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