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Cosmic Baryon Density from Primordial Nucleosynthesis and Other Evidence

Published online by Cambridge University Press:  12 April 2016

B.E.J. Pagel
B.E.J. Pagel*
Affiliation:
Astronomy Centre, CPES, Sussex University, Falmer, Brighton BN1 9QJ, UK

Abstract

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I comment on primordial abundances, their implications for cosmic baryon density (all are consistent with 4 ≤ η10 ≤ 5), the nature of baryonic dark matter (probably mainly hot intergalactic gas), its metallicity and implications for the overall yield. Recent estimates of the cosmic star formation rate as a function of red-shift are discussed in the light of the present-day densities of stars and heavy elements.

Type
The baryonic mass content of the Universe
Information
International Astronomical Union Colloquium , Volume 171: The Low Surface Brightness Universe , 1999 , pp. 375 - 382
Copyright
Copyright © Astronomical Society of the Pacific 1999

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