Abstract: 
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

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