Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986afz....24..131f&link_type=abstract
(Astrofizika, vol. 24, Jan.-Feb. 1986, p. 131-147) Astrophysics (ISSN 0571-7132), vol. 24, no. 1, July 1986, p. 78-89. Translati
Astronomy and Astrophysics
Astrophysics
11
Asymptotic Giant Branch Stars, Giant Stars, Globular Clusters, Mass To Light Ratios, Stellar Evolution, Stellar Mass Ejection, White Dwarf Stars, Carbon Stars, Chandrasekhar Equation, Magellanic Clouds, Planetary Nebulae, Stellar Luminosity, Stellar Winds
Scientific paper
The theoretical populations of white dwarfs and carbon stars were generated for Salpeter's initial mass function and constant stellar birthrate history. The effect of very strong mass loss on the mass distribution of white dwarfs and the luminosity distribution of carbon stars is discussed and the results are compared with observations. This comparison suggests that a significant mass loss by stars on the asymptotic giant branch occurs besides stellar wind and planetary nebulae ejection. Thus it is possible to explain the absence of carbon stars with Mbol < -6m in the Magellanic Clouds, very narrow mass distribution of white dwarfs and very small number of white dwarfs with M > 1.0 M_sun;. The luminosity of asymptotic giant branch stars in the globular clusters of the Magellanic Clouds appears to be a very good indicator of the age.
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