Computer Science
Scientific paper
Jun 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984msngr..36...17m&link_type=abstract
ESO Messenger (ISSN 0722-6691), June 1984, p. 17-20.
Computer Science
Chemical Evolution, Galactic Structure, Interstellar Matter, Stellar Composition, Stellar Evolution, Abundance, Heavy Elements, Stellar Mass, Stellar Models
Scientific paper
The production rates of certain chemical elements per stellar generation and the effect of Fe production from intermediate mass stars on the chemical evolutions of the solar neighborhood are considered. Attention is given to the He-4, C-12, C-13, O-16, N-14 and Fe-56 added to the interstellar medium (ISM) per stellar generation. Lower mass elements are produced in low mass stars, intermediate mass stars produce all contributed elements, and high mass stars are a major contributor of heavy elements. Comparisons of the observed ISM abundances with different elemental evolution scenarios are noted to aid in confirming stellar evolution models. A calculated variation of the Fe abundance with time is shown to agree well with an age-metallicity relationship for solar neighborhood stars. Finally, the supernova events from the destruction of C-O core stars are also expected to yield heavy nuclei.
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