Improving the sensitivity of gamma-ray telescopes to dark matter annihilation in dwarf spheroidal galaxies
Improving the sensitivity of gamma-ray telescopes to dark matter annihilation in dwarf spheroidal galaxies
The Fermi-LAT Collaboration has studied the gamma-ray emission from a stacked population of dwarf spheroidal galaxies and used this information to set constraints on the dark matter annihilation cross section. Interestingly, their analysis uncovered an excess with a test statistic (TS) of 8.7. If interpreted naively, this constitutes a $2.95\ensuremath{\sigma}$ …