The r-process during explosive helium burning in supernovae

Details The r-process during explosive helium burning in supernovae The r-process during explosive helium burning in supernovae

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....99..195h&link_type=abstract

Astronomy and Astrophysics, vol. 99, no. 1, June 1981, p. 195-198.

Astronomy and Astrophysics

Astrophysics

12

Beta Particles, Half Life, Helium, Nuclear Explosions, Nuclear Fusion, Supernovae, Electron Decay Rate, Heavy Elements, Neutron Flux Density, Radioactive Isotopes, Stellar Mass

Scientific paper

The paper discusses the r-process in He-burning shells of supernova explosions of massive stars; studies of this process have been associated with the difficulty that the time scales over which a sufficient neutron flux could be obtained were too short for a complete r-process. It is shown that with the new beta half lives this difficulty is largely removed and that explosive He-burning is a convincing alternative to the classical r-process scenario. Excellent agreement with the observed solar system r-process abundances is obtained if some enhancement of heavy elements due to s-processing during hydrostatic He-burning is included.

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