Primordial helium - The third decimal place

Details Primordial helium - The third decimal place Primordial helium - The third decimal place

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.256p..49p&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 256, no. 3, June 1, 1992, p. 49P-51P.

Astronomy and Astrophysics

Astronomy

32

Big Bang Cosmology, Chemical Evolution, Galactic Evolution, H Ii Regions, Interstellar Matter, Nuclear Fusion, Abundance, Helium, Regression Analysis

Scientific paper

Arguments are presented that contest the suggestions that the value of
the primordial helium mass fraction of 0.228 +/- 0.005, derived by Pagel
et al. (1992), is subject to an upward bias due to galactic chemical
evolution effects. The assumption that secondary nitrogen dominates even
at low metallicities is reexamined.

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