The (32)S/(33)S abundance as a function of galactocentric radius in the Milky Way

Details The (32)S/(33)S abundance as a function of galactocentric radius in the Milky Way The (32)S/(33)S abundance as a function of galactocentric radius in the Milky Way

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986inpr.conf..105g&link_type=abstract

In NASA. Ames Research Center Summer School on Instellar Processes: Abstracts of Contributed Papers p 105-106 (SEE N87-15043 06-

Computer Science

Abundance, Galactic Structure, Milky Way Galaxy, Stellar Evolution, Sulfur Isotopes, Combustion, Giant Stars, Oxygen, Stellar Mass, Stellar Mass Ejection

Scientific paper

Astration of heavy elements by the stars of the Milky Way forms a fossil record which may preserve spacial distribution of the mass function for the stars in the galaxy. Sulfur is among the last common element for which the relative abundance of its various isotopes have yet to be completely measured within our galaxy. Explosive oxygen burning in massive stars is thought to be the process which dominates sulfur production within stars. There models predict that the various isotopes (S-32, S-33, S-34) are formed in relative abundance which depend strongly upon the mass of the parent star. This relative abundance is thought to be unaffected by subsequent stellar procesing since all important sinks of sulfur destroy it without regard for isotopic form. Hence the spacial variation of the mass function (MF) can be studied by measuring the abundance variation of sulfur isotopes in the galaxy provided that the product yields for these isotopes are known accurately as a function of stellar mass.

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