Fermi provides another potential signal of galactic dark matter
DOI: 10.1063/PT.5.028378
New Scientist : Two previous detections of gamma rays from the center of the Milky Way have been cited as evidence of the annihilation of dark-matter particles. Now astronomers have spotted a third gamma-ray source that matches the predictions of dark-matter annihilation as well. Kevork Abazajian of the University of California, Irvine, and his colleagues predicted that starlight passing through the center of the Milky Way would scatter in a particular way off electrons produced by the annihilations. They found evidence of just such a signal in data collected by the Fermi Gamma-Ray Space Telescope and all-sky starlight surveys. However, proving that the electrons that cause the scattering came from dark-matter annihilation is a more difficult task.
