Flux-limited sample of Galactic carbon stars
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. 81 references.
- Research Organization:
- Massachusetts Univ., Amherst; Kitt Peak National Observatory, Tucson, AZ; California Univ., Los Angeles
- OSTI ID:
- 5345378
- Journal Information:
- Astrophys. J., Suppl. Ser.; (United States), Vol. 65
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GENERAL PHYSICS
MILKY WAY
CARBON STARS
DENSITY
INFRARED RADIATION
INTERSTELLAR SPACE
MAGELLANIC CLOUDS
MASS
STAR EVOLUTION
STATISTICS
VARIABLE STARS
ELECTROMAGNETIC RADIATION
GALAXIES
MAIN SEQUENCE STARS
MATHEMATICS
PHYSICAL PROPERTIES
RADIATIONS
SPACE
STARS
640105* - Astrophysics & Cosmology- Galaxies
640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar
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