Role of baryonic density on radiation fluctuation in an ino-dominated universe

Details Role of baryonic density on radiation fluctuation in an ino-dominated universe Role of baryonic density on radiation fluctuation in an ino-dominated universe

Jan 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...171....1h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 171, no. 1-2, Jan. 1987, p. 1-8.

Astronomy and Astrophysics

Astrophysics

1

Background Radiation, Baryons, Cosmic Rays, Radiation Distribution, Space Density, Universe, Astronomical Models, Cold Plasmas, Galactic Evolution, Plasma-Particle Interactions

Scientific paper

The influence of cold uncoupled massive particles ("inos") on the cosmic background radiation is considered. Particular emphasis is given to the physical origin of its fluctuations during recombination. The role of the baryonic component is stressed. Through a complete calculation, using both analytical and numerical arguments, the authors show that the temperature fluctuations are roughly proportional to the baryonic density. Comparison with observational data leads to constraints on the parameters of the Universe.

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