Sodium synthesis during hydrogen burning in stars

Details Sodium synthesis during hydrogen burning in stars Sodium synthesis during hydrogen burning in stars

Jun 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pazh...13..520d&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 13, June 1987, p. 520-525. In Russian. In Russian.

Astronomy and Astrophysics

Astronomy

12

Hydrogen, Nuclear Fusion, Sodium, Stellar Atmospheres, Stellar Cores, Synthesis (Chemistry), Abundance, Carbon 13, F Stars, K Stars, Supergiant Stars

Scientific paper

It is shown that, in hydrogen-burning main-sequence stars with a mass exceeding 1.5 solar masses, the Ne-22 (p, gamma) Na-23 reaction must lead to a substantial (more than five-fold) sodium enrichment of their cores. A correlation is found between the C-12/C-13 ratio and the overabundance of Na in the atmospheres of F-K supergiants with a lowered abundance of C.

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