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Gamma rays and the case for baryon symmetric big-bang cosmology (1977)

Stecker, F. W.

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Publication Date: 2011-08-17

Description: The 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.

Keywords: ASTROPHYSICS

Type: ESA Recent Advan. in Gamma-Ray Astronomy; p 201-206

Format: text

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