Unified description of dark matter at the center and in the halo of the Galaxy

Details Unified description of dark matter at the center and in the halo of the Galaxy Unified description of dark matter at the center and in the halo of the Galaxy

2001-11-19

arxiv.org/abs/astro-ph/0111366v2

Astronomy and Astrophysics

Astrophysics

13 pages, 3 figures, equations simplified, Fig. 1 slightly changed, summary expanded, 6 new references added

Scientific paper

We consider a self-gravitating ideal fermion gas at nonzero temperature as a model for the Galactic halo. The Galactic halo of mass ~ 2 x 10^12 Msol enclosed within a radius of ~ 200 kpc implies the existence of a supermassive compact dark object at the Galactic center that is in hydrostatic and thermal equilibrium with the halo. The central object has a maximal mass of ~ 2.3 x 10^6 Msol within a minimal radius of ~ 18 mpc for fermin masses ~ 15 keV.

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