Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978ap%26ss..58..377m&link_type=abstract
Astrophysics and Space Science, vol. 58, no. 2, Oct. 1978, p. 377-387.
Astronomy and Astrophysics
Astrophysics
1
Abundance, Carbon Stars, Cosmic Dust, Red Giant Stars, Stellar Atmospheres, Stellar Mass Accretion, M Stars, Stellar Evolution, Stellar Models, Stellar Spectra
Scientific paper
An attempt is made to estimate the rate of accretion of interstellar grains by red giants. It seems possible for a red giant traversing dust clouds to acquire, under realistic conditions, an amount of carbon sufficient to turn its spectrum into that of a carbon star. Coarse grains exceeding 0.001 cm in diameter are most effective in this process.
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