Electron capture and beta-decay in presupernova stars

Details Electron capture and beta-decay in presupernova stars Electron capture and beta-decay in presupernova stars

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...362..241a&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 362, Oct. 10, 1990, p. 241-250.

Astronomy and Astrophysics

Astrophysics

31

Beta Particles, Electron Capture, Nuclear Fusion, Radioactive Decay, Supernovae, Electron Energy, Fermi Surfaces, Stellar Evolution

Scientific paper

Calculations of electron capture and beta-decay from several odd-even and odd-odd nuclei with A greater than 60, seeking the largest transitions, are conducted. Of these, only the Co-60 + e(-) yields Fe-60 + nu(e) transition has been previously evaluated in a shell-model calculation, in a form suitable for inclusion in stellar evolution calculations. For neutron-rich stellar cores with Y(e) = Z/A = 0.42 to 0.43, this single transition accounts for roughly half of the total electron capture in present evolutionary calculations, even though the abundance by mass fraction of Co-60 is only on the order of 0.00001. Nuclei with A greater than 60, essentially not included to date, may make significant contributions to the electron caputre and beta-decay rates in the last stages of stellar evolution.

Affiliated with

Also associated with

No associations

Rating

Electron capture and beta-decay in presupernova stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Electron capture and beta-decay in presupernova stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electron capture and beta-decay in presupernova stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1302295