PIRSA:14030120

GeV Gamma-Rays from the Central Milky Way and the Case for Annihilating Dark Matter

Slatyer, T. (2014). GeV Gamma-Rays from the Central Milky Way and the Case for Annihilating Dark Matter. Perimeter Institute. https://pirsa.org/14030120

Slatyer, Tracy. GeV Gamma-Rays from the Central Milky Way and the Case for Annihilating Dark Matter. Perimeter Institute, Mar. 26, 2014, https://pirsa.org/14030120 

          @misc{ pirsa_PIRSA:14030120,
            doi = {10.48660/14030120},
            url = {https://pirsa.org/14030120},
            author = {Slatyer, Tracy},
            keywords = {Particle Physics},
            language = {en},
            title = {GeV Gamma-Rays from the Central Milky Way and the Case for Annihilating Dark Matter},
            publisher = {Perimeter Institute},
            year = {2014},
            month = {mar},
            note = {PIRSA:14030120 see, \url{https://pirsa.org}}
          }

Tracy Slatyer Massachusetts Institute of Technology (MIT) - Department of Physics

DOI 10.48660/14030120
Collection
Talk Type Scientific Series
Subject

Abstract

Past studies have identified a spatially extended excess of ~1-3 GeV gamma rays from the Galactic Center and inner Galaxy, consistent with the emission expected from annihilating thermal relic dark matter. I will describe recent improvements in the characterization of this signal, which demonstrate that it is spherically symmetric, centered on the Galactic Center, and with a spatial profile consistent with annihilation from a cusped NFW profile. The excess can be detected out to 10 degrees from the Galactic Center, which poses challenges for a millisecond pulsar origin; I will discuss the implications of a dark matter interpretation.