Dr. Andrew Benson

Document Sample
Dr. Andrew Benson Powered By Docstoc
					                                      PHYSICS AND ASTRONOMY

      Dr. Andrew Benson      California Institute of Technology

   “Constraining Decaying Dark
  Matter with Galaxy Observations”

Recent observational advances in the study of Local Group dwarf galaxies have made these
objects invaluable as tests of both galaxy formation and dark matter physics. Broad classes of
dark matter particle candidates may potentially decay into other particles. This process can
significantly affect the structure of the dark matter surrounding dwarf galaxies and, in extreme
cases, prevent the galaxy from forming. I will describe new constraints on the properties of the
dark matter particle derived from these observations.

                        Wednesday October 27, 2010
                                3:30 p.m.
                           Bob Wright Centre
                               Room A104