PIRSA:14030120 Scientific Series Particle Physics

DOI10.48660/14030120

Series: Particle Physics

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}}
}

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.

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