Collisions between galaxies in a symmetric cosmology

Details Collisions between galaxies in a symmetric cosmology Collisions between galaxies in a symmetric cosmology

Feb 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976a%26a....46..455b&link_type=abstract

Astronomy and Astrophysics, vol. 46, no. 3, Feb. 1976, p. 455-460.

Astronomy and Astrophysics

Astrophysics

3

Annihilation Reactions, Antimatter, Cosmology, Galactic Clusters, Gamma Rays, Interacting Galaxies, Astronomical Models, Baryons, Collisions

Scientific paper

The gamma-ray flux emitted in a baryon-symmetric universe as a consequence of galaxy-antigalaxy collisions is calculated. This flux turns out to be three orders of magnitude higher than the observed value. This confirms that the typical extent of an anti-matter condensation in such a model cannot be less than the size of a cluster of galaxies.

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