Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...243..987i&link_type=abstract
Astrophysical Journal, Part 1, vol. 243, Feb. 1, 1981, p. 987-993.
Astronomy and Astrophysics
Astrophysics
22
Carbon Stars, Stellar Evolution, Stellar Mass, Stellar Mass Accretion, White Dwarf Stars, Asymptotic Giant Branch Stars, Helium, Hydrogen, Interstellar Matter, Isotopes, Late Stars, Neutrons, Nuclear Fusion, Stellar Envelopes
Scientific paper
Observations of optically luminous carbon stars in the Magellanic Clouds suggest that intermediate-mass stars lose their hydrogen-rich envelopes during the asymptotic giant-branch phase before they have made s-process isotopes, both in large quantities and in the solar system distribution. Thus a search for alternate sources of these isotopes in the convective helium-carbon region in accreting white dwarfs during helium shell flashes is recommended. A serious effort should be made to determine the bolometric magnitude of far-infrared carbon stars in the Magellanic clouds.
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