Deuterium formation and abundance

Details Deuterium formation and abundance Deuterium formation and abundance

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987esasp.268...73v&link_type=abstract

In ESA Space Astronomy and Solar System Exploration p 73-83 (SEE N87-29374 23-88)

Astronomy and Astrophysics

Astronomy

4

Abundance, Cosmochemistry, Deuterium, Helium, Interstellar Matter, Nuclear Fusion, Astronomical Spectroscopy, Big Bang Cosmology, Galactic Evolution

Scientific paper

The importance of deuterium (as well as helium) is underlined. Formed during the early universe nucleosynthesis, it represents one of the few available cosmological probes. Different observational methods are mentioned and the most precise one described in more details. It leads to a possible "average" D/H value in the interstellar medium of 10-5. Variations of the deuterium abundance seem to be observed now on small galactic scales. Comparison with theory shows that many more observations are needed.

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