A stellar probe of dark matter annihilation in galactic nuclei

Details A stellar probe of dark matter annihilation in galactic nuclei A stellar probe of dark matter annihilation in galactic nuclei

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...338...24s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 338, March 1, 1989, p. 24-31. Research supported by NSF and DOE.

Statistics

Computation

42

Annihilation Reactions, Dark Matter, Galactic Nuclei, Main Sequence Stars, Stellar Evolution, Baryons, Collision Rates, Computational Astrophysics, Red Shift, Stellar Luminosity

Scientific paper

Stellar evolution within dense clouds of slowly annihilating cold dark matter (CDM) is studied. It is shown that stars catalyze the annihilation rate, leading to observable consequences for the evolution of low-mass stars as viewed in the cumulative light from distant galactic nuclei. The evolution of a single star in the presence of an extreme concentration of CDM is examined. A dynamical scenario for the evolution of a galactic nucleus containing stars and CDM is described, and the effects of dynamical friction due to the CDM on stellar orbits is estimated.

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