Massive stars as Galactic producers of Al-26

Details Massive stars as Galactic producers of Al-26 Massive stars as Galactic producers of Al-26

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26as...97..141s&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 97, no. 1, p. 141-144.

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6

Aluminum 26, Massive Stars, Milky Way Galaxy, Nuclear Astrophysics, Supernovae, Wolf-Rayet Stars, Abundance, Computational Astrophysics, Metallicity, Star Distribution

Scientific paper

Updated nucleosynthesis models and Galactic SN rates are used to reanalyze the Galactic production of Al-26 by Type-II supernovae and Wolf-Rayet stars. The distribution of star-formation activity and metallicity through the Galaxy is discussed, with emphasis on the Galactic center. Contributions from Type-II supernovae and Wolf-Rayet stars are found to amount to 1.35 and 0.35 solar mass, respectively, if the total Galactic rate of core-collapse supernovae is about 4 per century. Massive stars are presently on the verge of accounting for the 3 solar masses of live Al-26 present in the Galaxy.

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