Deuterium, helium, and the Big-Bang nucleosynthesis

Details Deuterium, helium, and the Big-Bang nucleosynthesis Deuterium, helium, and the Big-Bang nucleosynthesis

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...138..285v&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 138, no. 2, Sept. 1984, p. 285-289.

Astronomy and Astrophysics

Astrophysics

43

Big Bang Cosmology, Deuterium, Helium, Interstellar Gas, Nuclear Fusion, Abundance, Galactic Evolution, Hydrogen Clouds

Scientific paper

A review of the helium and deuterium observations in interstellar space is presented. From these observations, through the use of simple galactic evolution models, the corresponding primordial values are estimated. The results obtained seem to fit poorly the prediction of the standard Big-Bang nucleosynthesis model. This could possibly be due to the fact that the presently available data represent a peculiar selection of observations. If this is not the case, it appears that either the standard Big-Bang model has to be revised or the models of galactic evolution are too simple and should include other pregalactic or galactic events able to burn deuterium more quickly.

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