Nucleosynthesis in novae - A source of Ne-E and Al-26

Details Nucleosynthesis in novae - A source of Ne-E and Al-26 Nucleosynthesis in novae - A source of Ne-E and Al-26

Apr 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...255..617h&link_type=abstract

Astrophysical Journal, Part 1, vol. 255, Apr. 15, 1982, p. 617-623.

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58

Aluminum 26, Neon Isotopes, Novae, Nuclear Fusion, Sodium 22, Stellar Structure, Abundance, Astronomical Models, Isotope Effect, Magnesium Isotopes

Scientific paper

It is shown upon computation of the nucleosynthesis products of explosive hydrogen burning, in the framework of recent nova models, that nova condensates will probably contain isotopic anomalies in Ne-22, from Na-22 decay, and Mg-26, from Al-26 decay. It is found, for all the models considered, that while too much Ne-20 and -21 is produced relative to Ne-22 to explain the presumably almost pure Ne-22 meteoritic Ne-E component, the Na-22 abundance is high enough to explain Ne-E as its decay product if nova condensates are preserved in Ne samples. It is also determined that while Al-26 is coproduced with Na-22, its total amount strongly depends on the uncertain, Si-27(p, gamma)P-28 reaction rate. The abundances of all nuclides, up to Ar, are computed and found to be clearly nonsolar in many cases.

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