On the ^7 Li and ^7 Be synthesis in novae

Details On the ^7 Li and ^7 Be synthesis in novae On the ^7 Li and ^7 Be synthesis in novae

1996-04-18

arxiv.org/abs/astro-ph/9604102v1

Astronomy and Astrophysics

Astrophysics

Accepted for publication on Ap. J. Letters, 14 pages, AAS Latex v4.0, 2 Postscript figures

Scientific paper

The production of ^7 Li and ^7 Be during the explosive hydrogen-burning that occurs in nova explosions is computed by means of a hydrodynamic code able to treat both the accretion and the explosion stages. Large overproduction factors with respect to solar abundances are obtained, the exact value depending mainly on the chemical composition of the envelope. Although the final ejected masses are small, these results indicate that novae can contribute to the ^7 Li enrichment of the interstellar medium. Furthermore, since ^7 Be decays emiting a gamma-ray (478 KeV), with a half-life of 53.3 days, the synthesis of ^7 Li could be tested during the INTEGRAL mission.

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