Cosmological constraints of the 'inos' composing galactic halos

Details Cosmological constraints of the 'inos' composing galactic halos Cosmological constraints of the 'inos' composing galactic halos

Jun 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...179....3r&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 179, no. 1-2, June 1987, p. 3-10.

Astronomy and Astrophysics

Astrophysics

8

Cosmology, Dark Matter, Galactic Evolution, Neutrinos, Particle Theory, Background Radiation, Constraints, Fermions, Galactic Rotation, Particle Mass, Space Density

Scientific paper

The authors introduce a general theoretical framework which imposes constraints upon the spin, masses, and phase space densities of the cosmological "inos" forming the dark matter component of the Universe. The novelty of the approach is in using largely model-independent features of both galactic halos and cosmological thermodynamical equilibrium. Uncondensed bosons are excluded as a component of the galactic halos, while fermions are confirmed as best candidates. Explicit limits on the masses and occupation numbers of "inos" fermions are established in terms of the masses and radii of galactic halos and of their cosmological abundances. Consequences on the associated cosmological background radiation are given.

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