Measurement of Primordial Helium Abundance from the Star μ Cassiopeiae

Details Measurement of Primordial Helium Abundance from the Star μ Cassiopeiae Measurement of Primordial Helium Abundance from the Star μ Cassiopeiae

Feb 1970

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1970phrvl..24..415h&link_type=abstract

Physical Review Letters, vol. 24, Issue 8, pp. 415-418

Mathematics

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13

Scientific paper

A measurement of the separation between the components of the binary star μ-Cassiopeiae to yield the stellar masses has been made. Applying the mass-luminosity law, we find a helium abundance Y~0 where a 1``σ" and 2``σ" random error allows, respectively, Y~0.05 and Y~0.34. The measured abundance places an upper limit on the helium production in a big bang cosmological model.

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