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Confrontation of Antimatter Cosmologies with Observational Data

Published online by Cambridge University Press:  07 February 2017

Gary Steigman
Gary Steigman*
Affiliation:
Yale University U.S.A.

Abstract

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The presence of large amounts of antimatter in the Universe would be detectable directly via the cosmic rays and indirectly via the annihilation γ-rays. The observational data is reviewed. There is no evidence whatever indicating the presence of astrophysically interesting amounts of antimatter in the Universe. From the available data we may conclude that the Galaxy is made entirely of ordinary matter and that if any antimatter at all is present in the Universe, it must be very well separated from ordinary matter. Furthermore, we show that the observational constraints on various symmetrical cosmological models strengthen the case against antimatter in the Universe.

Type
Part VI: Matter-Antimatter Universes and Physical Processes Near the Singularity
Information
Symposium - International Astronomical Union , Volume 63: Confrontation of Cosmological Theories , 1974 , pp. 347 - 356
Copyright
Copyright © Reidel 1974 

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