Radioactive nuclei from hydrostatic stellar burning phases and associated gamma-ray lines.

Details Radioactive nuclei from hydrostatic stellar burning phases and associated gamma-ray lines. Radioactive nuclei from hydrostatic stellar burning phases and associated gamma-ray lines.

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989nuas.conf...76p&link_type=abstract

"Proceedings of the 5th Workshop on Nuclear

Astronomy and Astrophysics

Astronomy

Stellar Interiors: Nucleosynthesis, Stellar Evolution: Supernovae, Interstellar Matter: Gamma-Ray Lines

Scientific paper

The nucleosynthesis of the radioactive nuclei 59Fe, 60Fe and 60Co under hydrostatic He-burning conditions is investigated in a parameterized way using a full s-process network. It is found that significant quantities of those nuclei can be produced in realistic shell He-burning conditions met in massive stars. The implications of these results for galactic γ-ray line astronomy of point and diffuse sources are evaluated semi-quantitatively. It is suggested that an "average" galactic type II supernova would give detectable γ-ray fluxes of the 59Fe line, and that a diffuse 60Fe emission line from the galactic plane should be observable with next generation instruments.

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