Production of the light elements due to neutrinos emitted by collapsing stellar cores

Details Production of the light elements due to neutrinos emitted by collapsing stellar cores Production of the light elements due to neutrinos emitted by collapsing stellar cores

Oct 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978ap%26ss..58..273d&link_type=abstract

Astrophysics and Space Science, vol. 58, no. 2, Oct. 1978, p. 273-299. Translation.

Astronomy and Astrophysics

Astrophysics

17

Light Elements, Neutrinos, Particle Emission, Particle Interactions, Stellar Cores, Stellar Envelopes, Stellar Radiation, Beryllium, Boron, Gravitational Collapse, Helium Hydrogen Atmospheres, Lithium, Stellar Models

Scientific paper

The interaction cross sections of neutrinos emitted by collapsing stellar cores with matter from the expelled envelope are estimated. The neutrinos are shown to be able to produce isotopes of light elements (lithium, beryllium, and boron) effectively in the stellar envelope and also, possibly, to create some deuterium. The neutrino-induced production of light elements accounts quite naturally for the observed enhanced abundances of odd isotopes of lithium and boron, as compared with even ones. It is emphasized that a reliable quantitative evaluation of the light-element yields has to be based on thoroughly elaborated hydrodynamical models of envelope ejection. Slow expulsion of the envelope due to nonthermal forces seems to be the most favorable case for neutrino-induced production of light elements. The proposed mechanism for the production of light elements can be verified observationally. The enhanced abundances of lithium and boron with respect to their cosmic values are expected to be characteristic of Crab Nebula filaments. Also, it is of interest to search for the lines of light elements in supernova spectra.

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