Distribution of dark matter in the galaxy and the lower limits for the masses of supersymmetric particles

Details Distribution of dark matter in the galaxy and the lower limits for the masses of supersymmetric particles Distribution of dark matter in the galaxy and the lower limits for the masses of supersymmetric particles

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992stin...9328473b&link_type=abstract

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Astronomy and Astrophysics

Astronomy

Dark Matter, Density Distribution, Galactic Evolution, Gamma Rays, Gas Density, Milky Way Galaxy, Radio Emission, Flux Density, Gamma Ray Astronomy, Gravitational Fields, Neutrinos, Point Sources, Radio Astronomy, Supersymmetry

Scientific paper

An argument that the nonlinear stage of evolution of density fluctuations in a nondissipative gas results in the formation of a Nondissipative Gravitational Singularity (NGS) with density distribution rho(r) approximately r to the power of minus alpha where alpha is approximately equal to 1.8 is presented. This dependence holds from very small distance r(min) approximately 0.1 pc to very large distance r(max) approximately 5 Mpc. The predicted density distribution as well as the local density of the dark matter rho(stellar mass) is approximately equal to 0.3 GeV/cu cm are in good agreement with the observations. Dark matter particles have large space density in NGS and therefore, the rate of their annihilation is very high. This point like source of the radiation is the signature of NGS model. Assuming that dark matter in the Galaxy is composed mostly of neutralinos (approximately 70%) we calculate the flux of high energy gamma radiation and radio flux from the Galactic Center.

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