Resumen de Black hole army behind gamma ray excess
A flood of gamma rays comes at us from the center of the Milky Way, and dark matter smashing up at the edge of black holes may be partly to blame. Annihilation of weakly interacting massive particles, a leading contender for dark matter, can explain the overall shape of the gamma ray emissions we see. But spikes in the signal must be from other sources, possibly black holes or pulsars. Thomas Lacroix at the University of Montpellier and Joseph Silk at the Sorbonne University in Paris, both in France, now propose that these fluctuations come from a cluster of intermediate-mass black holes within the central bulge of our galaxy
