Na-22 and Al-26 production and nucleosynthesis in novae explosions

Details Na-22 and Al-26 production and nucleosynthesis in novae explosions Na-22 and Al-26 production and nucleosynthesis in novae explosions

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...238..178w&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 238, no. 1-2, Nov. 1990, p. 178-186.

Astronomy and Astrophysics

Astrophysics

63

Aluminum 26, Novae, Nuclear Astrophysics, Nuclear Fusion, Sodium 22, Abundance, Star Formation, Stellar Composition, Stellar Envelopes, Stellar Models

Scientific paper

Nucleosynthesis accompanying nova explosions is studied for representative temperature histories extracted from hydrodynamic models and using a significantly expanded nuclear reaction network. The results confirm that only relatively low levels of Na-22 and Al-26 production can occur in envelope matter characterized by large initial concentrations of elements in the range from Ne to Al. Novae may represent an important source of Al-26 in the Galaxy, and some nearby novae may be expected to produce detectable flux levels of Na-22 decay gamma rays. The detection of Na-22 in novae would provide critical constraints on their temperature, envelope convection histories, and initial envelope composition.

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