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The Center Of Galaxies

Astronomy Spring Colloquia April 20, 2010 Tuesday, 4:30pm-5:30pm, Peyton Hall auditorium:

By Scott Tremaine

The massive black holes found at the centers of most galaxies, including our
own, are believed to be the ashes of the fuel that powered quasars early in
the life of universe. I will briefly review some of the astronomical evidence
for these objects and then describe some of the exotic dynamical phenomena
that originate in their vicinity, including hypervelocity stars, resonant
relaxation, phase transitions, and warped and lopsided stellar disks.