Dr. Karl Gebhardt

University of Texas

"Dark Matter and Black Holes: Shedding Light on Galaxy Formation"

In the past few years, supermassive black holes have gone from being considered possible oddities at the centers of galaxies to fundamental components of galaxies. The black holes correlate closely with properties of its host galaxy, implying an intimate connection between the two. I will discuss the present results concerning black-hole surveys and galaxy models. An equally important component of galaxy formation is understanding the dark matter distribution, but obtaining kinematics at the necessary radii is challenging. I will describe a new instrument that we built for our dark energy project that is the best instrument available for dark matter studies. The latest results for both the dark matter profiles and black holes show important trends that effect theories of galaxy formation and black hole growth.

Back to Spring 2008 Astrophysics Seminars

Received February 26, 2008