Physics and Astronomy Colloquium

Dartmouth Events

Physics and Astronomy Colloquium

Dr. Warren Brown, Smithsonian Astrophysical Observatory

Friday, April 11, 2014
3:30pm-5:00pm
Wilder 104
Intended Audience(s): Public
Categories: Lectures & Seminars
Title: "Hypervelocity Stars"
 
Abstract: A massive black hole sits in the heart of the Milky Way.  Most stars are found in multiple systems.  A consequence of these two facts are "hypervelocity stars" ejected from the Milky Way at million mph velocities.  I discovered the first hypervelocity star in 2005, and since then have found more than 20 unbound hypervelocity stars in a targeted survey.  Recent results include new evidence for their origin, an unexplained spatial distribution on the sky, and Hubble Space Telescope proper motion measurements that may allow us constrain the shape and orientation of the Galactic potential.
For more information, contact:
Tressena Manning
603-646-2854

Events are free and open to the public unless otherwise noted.