Helium abundance in novae

Details Helium abundance in novae Helium abundance in novae

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ap%26ss.193...47m&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 193, no. 1, July 1992, p. 47-50.

Astronomy and Astrophysics

Astrophysics

Abundance, Binary Stars, Helium, Novae, Stellar Composition, Big Bang Cosmology, Late Stars, Nebulae, Stellar Evolution

Scientific paper

The He-4 abundance of the Nova Delphini 1967 is determined, using their nebular stage spectra, which is of the order 0.18 by number and 0.39 by mass. The results and similar measurements on other novae show that the He-4 abundance in novae is about twice the amount predicted by the Big-Bang theory. The binary structure is the main cause of He-4 overabundance in novae.

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