Li-7 production in bouncing supermassive stars

Details Li-7 production in bouncing supermassive stars Li-7 production in bouncing supermassive stars

Jun 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976a%26a....49..337n&link_type=abstract

Astronomy and Astrophysics, vol. 49, no. 3, June 1976, p. 337-342.

Astronomy and Astrophysics

Astrophysics

23

Astronomical Models, Lithium Isotopes, Nuclear Fusion, Abundance, Stellar Rotation, Stellar Temperature, Temperature Effects

Scientific paper

Nucleosynthesis in detailed models for bouncing supermassive stars is investigated. A nonrotating star of 520,000 solar masses and a rotating star of 3 million solar masses are considered, and the time evolution of the abundances is followed throughout the quasi-steady contraction phase as well as through the implosion-explosion. The numerical network integrations show that explosions of such objects cause predominantly the enrichment of Li-7. Typical enhancement factors for Li-7 with respect to the 'universal' value of Cameron (1973) are of the order of 1000, whereas those of C-13, N-15, and O-17 are of the order of 100 or less. The implications of the results concerning the amount of galactic matter which might be processed in such objects are discussed.

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