Bolometric luminosities and infrared properties of carbon stars in the Magellanic Clouds and the Galaxy

Details Bolometric luminosities and infrared properties of carbon stars in the Magellanic Clouds and the Galaxy Bolometric luminosities and infrared properties of carbon stars in the Magellanic Clouds and the Galaxy

Oct 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...249..481c&link_type=abstract

Astrophysical Journal, Part 1, vol. 249, Oct. 15, 1981, p. 481-503. Research supported by the California Institute of Technolog

Astronomy and Astrophysics

Astronomy

308

Carbon Stars, Infrared Astronomy, Magellanic Clouds, Milky Way Galaxy, Stellar Luminosity, Stellar Spectrophotometry, Abundance, Bolometers, Infrared Photometry, Luminous Intensity, Star Distribution, Stellar Evolution, Stellar Mass, Tables (Data)

Scientific paper

Infrared photometry of a selection of the Blanco et al. (1980) complete sample of C stars in the LMC and SMC, and of a sample of field C stars in the Galaxy, shows that the basic trends of the infrared colors and indices for C stars in the Galaxy and Magellanic clouds are similar but not identical. The photometry was used with the bolometric corrections of Frogel et al. (1980) to derive a bolometric luminosity function for the BMB sample, which was then compared with evolutionary calculations of double shell burning stars undergoing He shell flashes. It is found that: (1) the shape of the luminosity distribution in I or BMB is that of the bolometric luminosity function; (2) none of the available theoretical models can reproduce the SMC and LMC luminosity distribution for C stars, as M(bol) is predicted to be too bright; and (3) the observed luminosity function is approximately Gaussian, with a FWHM of about 0.8 mag in both the SMC and LMC.

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