A flux-limited sample of Galactic carbon stars

Details A flux-limited sample of Galactic carbon stars A flux-limited sample of Galactic carbon stars

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apjs...65..385c&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 65, Nov. 1987, p. 385-404. NSF-supported research.

Statistics

Computation

184

Carbon Stars, Infrared Sources (Astronomy), Interstellar Matter, Milky Way Galaxy, Stellar Evolution, Variable Stars, Computational Astrophysics, Magellanic Clouds, Stellar Luminosity

Scientific paper

Published observational data (including IRAS observations) for a flux-limited sample of 215 Galactic carbon stars (CSs) selected from the 2-micron sky survey of Neugebauer and Leighton (1969) are compiled in extensive tables and graphs and analyzed statistically. The sample is found to penetrate a volume of radius 1.5 kpc, and the local CS space density and surface density are calculated as log rho0 (per cu kpc) = 2.0 + or - 0.4 and log N (per sq kpc) = 1.6 + or - 0.2, respectively. The total Galactic mass-return rate from these CSs is estimated as 0.013 solar mass/yr, implying a time scale of 0.1-1 Myr for the CS evolutionary phase and a mass of 1.2-1.6 solar mass for the (probably F-type) main-seqence progenitors of CSs.

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