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Gamma rays and the case for baryon symmetric big-bang cosmologyThe baryon symmetric big-bang cosmologies offer an explanation of the present photon-baryon ratio in the universe, the best present explanation of the diffuse gamma-ray background spectrum in the 1 to 200 MeV range, and a mechanism for galaxy formation. In the context of an open universe model, the value of omega which best fits the present gamma-ray data is omega equals approx. 0.1 which does not conflict with upper limits on Comptonization distortion of the 3K background radiation. In regard to He production, evidence is discussed that nucleosynthesis of He may have taken place after the galaxies were formed.
Document ID
19780003983
Document Type
Conference Paper
Authors
Stecker, F. W. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 9, 2013
Publication Date
July 1, 1977
Publication Information
Publication: ESA Recent Advan. in Gamma-Ray Astronomy
Subject Category
ASTROPHYSICS
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.