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Detailed Nucleosynthesis Yields from the Explosion of Massive Stars

Published online by Cambridge University Press:  01 December 2007

Carla Fröhlich ,
T. Fischer ,
M. Liebendörfer ,
F.-K. Thielemann  and
J.W. Truran
Carla Fröhlich
Affiliation:
Enrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago IL 60637, USA email: frohlich@uchicago.edu
T. Fischer
Affiliation:
Dept. of Physics, University of Basel, Klingelbergstr. 82, CH-4056 Basel, Switzerland
M. Liebendörfer
Affiliation:
Dept. of Physics, University of Basel, Klingelbergstr. 82, CH-4056 Basel, Switzerland
F.-K. Thielemann
Affiliation:
Dept. of Physics, University of Basel, Klingelbergstr. 82, CH-4056 Basel, Switzerland
J.W. Truran
Affiliation:
Enrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago IL 60637, USA email: frohlich@uchicago.edu Department of Astronomy and Astrophysics and ASC Flash Center, 5640 S. Ellis Ave, Chicago, IL 60637, USA
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Abstract

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Despite the complexity and uncertainties of core collapse supernova simulations there is a need to provide correct nucleosynthesis abundances for the progressing field of galactic evolution and observations of low metallicity stars. Especially the innermost ejecta are directly affected by the explosion mechanism, i.e. most strongly the yields of Fe-group nuclei for which an induced piston or thermal bomb treatment will not provide the correct yields because the effect of neutrino interactions is not included.

Recent observations of metal-poor halo stars support the suggested existence of a lighter element primary process (LEPP) which operates very early in the galaxy and is independent of the r-process. We present a candidate for the LEPP, the so-called νp-process.

Keywords

nuclear reactionsnucleosynthesisabundances – supernovae: general – neutrinos
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S250: Massive Stars as Cosmic Engines , December 2007 , pp. 401 - 406
Copyright
Copyright © International Astronomical Union 2008

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