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Title: The impact of the phase-space density on the indirect detection of dark matter

We study the indirect detection of dark matter when the local dark matter velocity distribution depends upon position, as expected for the Milky Way and its dwarf spheroidal satellites, and the annihilation cross-section is not purely s-wave. Using a phase-space distribution consistent with the dark matter density profile, we present estimates of cosmic and gamma-ray fluxes from dark matter annihilations. The expectations for the indirect detection of dark matter can differ significantly from the usual calculation that assumes that the velocity of the dark matter particles follows a Maxwell-Boltzmann distribution.
Authors:
;  [1]
  1. Physics Department and McDonnell Center for the Space Sciences, Washington University, St Louis, MO 63130 (United States)
Publication Date:
OSTI Identifier:
22282752
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2013; Journal Issue: 09; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ANNIHILATION; ASTROPHYSICS; BOLTZMANN STATISTICS; CROSS SECTIONS; DENSITY; GAMMA RADIATION; MILKY WAY; NONLUMINOUS MATTER; PHASE SPACE; S WAVES