Celestial-body focused dark matter annihilation throughout the Galaxy

  title={Celestial-body focused dark matter annihilation throughout the Galaxy},
  author={Rebecca K. Leane and Tim Linden and Payel Mukhopadhyay and Natalia Toro},
Indirect detection experiments typically measure the flux of annihilating dark matter (DM) particles propagating freely through galactic halos. We consider a new scenario where celestial bodies “focus” DM annihilation events, increasing the efficiency of halo annihilation. In this setup, DM is first captured by celestial bodies, such as neutron stars or brown dwarfs, and then annihilates within them. If DM annihilates to sufficiently long-lived particles, they can escape and subsequently decay… 

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