Distortions of the cosmic radiation spectrum in baryon-symmetric cosmologies

Details Distortions of the cosmic radiation spectrum in baryon-symmetric cosmologies Distortions of the cosmic radiation spectrum in baryon-symmetric cosmologies

Jun 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978mnras.183..585j&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 183, June 1978, p. 585-594.

Astronomy and Astrophysics

Astronomy

6

Annihilation Reactions, Background Radiation, Baryons, Cosmology, Microwave Emission, Microwave Spectra, Astronomical Models, Signal Distortion, Spectrum Analysis, Symmetry, Temperature Effects

Scientific paper

In matter-antimatter symmetric cosmologies, annihilation-induced heating distorts the spectrum of the microwave background radiation. For 'violent' models, such as that of Stecker and Puget (1972), the predicted distortions exceed the observational constraints. For 'quiescent' models, such as that of Aldrovandi et al. (1973), only small distortions are produced, and these are consistent with current observational limits. It is, however, difficult to understand the origin of galaxies in the quiescent models. The retarded recombination in such models vastly increases the photon drag on any annihilation driven turbulence.

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