Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979pazh....5...86k&link_type=abstract
(Pis'ma v Astronomicheskii Zhurnal, vol. 5, Feb. 1979, p. 86-91.) Soviet Astronomy Letters, vol. 5, Jan.-Feb. 1979, p. 47-50. Tr
Astronomy and Astrophysics
Astrophysics
1
Abundance, Astrophysics, Chemical Composition, Heavy Elements, Interstellar Matter, Main Sequence Stars, Chemical Evolution, Correlation, Neutrons, Stellar Evolution, Stellar Interiors, Stellar Mass Ejection
Scientific paper
This letter demonstrates that correlations of a certain type should result for heavy elements synthesized in main-sequence stars by slow neutron capture (the s-process) and ejected into the interstellar medium, provided the interstellar gas undergoes complete mixing before stars of the next generation are formed. It is assumed that elements lighter than iron and the iron-group elements are synthesized under nonequilibrium conditions and that a chain of successive slow neutron captures occurs. An analytical model of galactic chemical evolution is constructed which takes into account the effect of the time-variable abundance of s-process elements in the interstellar medium on the synthesis of elements in stellar interiors.
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