FacebookTwitterYouTube RSS Feed

To Build an Elliptical Galaxy

Event Details

Event Dates: 

Monday, September 30, 2013 - 4:00pm

Seminar Location: 

  • JILA Auditorium

Speaker Name(s): 

Jenny Greene

Speaker Affiliation(s): 

Princeton
Seminar Type/Subject

Scientific Seminar Type: 

  • Astrophysical & Planetary Sciences Seminar

Event Details & Abstract: 

I discuss two essential aspects of elliptical galaxy formation: how they get their stars, and how they lose their gas. For the former, I use integral-field observations of local massive galaxies to study the stellar populations and kinematics of stars at large radius, to understand the origin of the size growth of elliptical galaxies. Then I focus on black hole feedback as a means of clearing gas from massive galaxies. I show that luminous obscured quasars have ubiquitous, round ionized outflows with very high gas dispersions of nearly 1000 km/s out to 20 kpc. Finally, if time permits I will combine these two themes and present our recent search for sub-pc supermassive black hole binaries.