Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...277..783d&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 277, Feb. 15, 1984, p. 783-790. Research supported by the Aerospace Corp.
Astronomy and Astrophysics
Astrophysics
15
Cosmic Rays, Stellar Mass Ejection, Stellar Winds, Supermassive Stars, Abundance, Aluminum, Chemical Composition, Helium, Interstellar Matter, Magnesium, Mass Ratios, Nuclear Fusion, Stellar Evolution
Scientific paper
The evolution of 100 M_sun;, 150 M_sun;, and 2200 M_sun; stars has been studied, with the emphasis placed upon the composition of the material returned to the interstellar medium by the stellar winds. Stars with a mass greater than ≡100 M_sun; can do enough processing via the Na-Ne and Mg-Al cycles to redistribute these nuclei and produce significant amounts of 26Al. Core helium-burning s-process nuclei also are injected into the interstellar medium. The strong stellar winds provide a large energy source for locally accelerating cosmic rays, which would modify the composition of the solar nebula by nuclear reactions.
Bernard Blake J.
Dearborn David S. P.
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