Small dark matter clumps and annihilation signal

Details Small dark matter clumps and annihilation signal Small dark matter clumps and annihilation signal

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005nuphs.138...25b&link_type=abstract

Nuclear Physics B, Volume 138, p. 25-27.

Physics

Nuclear Physics

Scientific paper

We study the cosmological origin of small-scale DM clumps in the hierarchical scenario with a most conservative assumption of adiabatic gaussian fluctuations. The main included effect (tidal interaction) results in the formation of a large core in the center of a clump and in tidal destruction of a large fraction of the clumps. The enhancement of the annihilation signal due to DM clumpiness in the galactic halo, valid for arbitrary DM particles, is calculated.

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