The primordial helium abundance determination from metal-poor galaxies

Details The primordial helium abundance determination from metal-poor galaxies The primordial helium abundance determination from metal-poor galaxies

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pasp...98..984k&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 98, Oct. 1986, p. 984-987.

Astronomy and Astrophysics

Astronomy

24

Abundance, Big Bang Cosmology, Galactic Evolution, Helium, Ionized Gases, Metallicity

Scientific paper

The advantages of measuring the helium abundance in metal-poor emission-line galaxies are emphasized. Recent results are reviewed and seem to converge to a primordial helium abundance Yp = 0.24±0.01. There is little evidence so far for a relation between the helium abundance and the oxygen abundance whereas nitrogen seems to correlate better with the observed helium. Uncertainties are discussed as well as prospects for future improvements in the helium abundance determination.

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