Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...340..966h&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 340, May 15, 1989, p. 966-984.
Astronomy and Astrophysics
Astrophysics
87
Asymptotic Giant Branch Stars, Neutrons, Nuclear Fusion, Particle Production, Stellar Composition, Carbon Stars, Stellar Evolution, Stellar Interiors
Scientific paper
Results are presented of stellar evolution calculations for a low-mass low-metallicity thermally pulsing AGB model star. It is shown that the controlling factor in determining neutron densities in the region of neutron-capture nucleosynthesis is the rate at which C-13 is introduced into the convective shell during the early stages of a thermal pulse. It is also shown that, after several pulses, the neutron-irradiated material is characterized by an exposure parameter that is very similar to that characterizing the heavy elements observed in solar system material and in some AGB stars.
Hollowell David
Iben Icko Jr.
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