Dark Matter Signal Or New Gamma-Ray Point Sources: How Can We Tell? (speaker: Tracy Slatyer, MIT)

Tuesday November 24, 2015 4:00 pm
Marlar Lounge (37-252)

Studies of data from the Fermi Gamma-Ray Space Telescope have revealed bright gamma-ray emission from the central regions of our galaxy, with a spatial and spectral profile consistent with annihilating dark matter.  However, I will present a new model-independent analysis that suggests that rather than originating from dark matter, the GeV excess may arise from a surprising new population of as-yet-unresolved gamma-ray point sources in the heart of the Milky Way. I will briefly discuss other possible astrophysical explanations, and whether a population of millisecond pulsars could explain these new results.

Talk Host:  Scott Hughes


Additional information about Tracy Slatyer