Multi-wavelength observations of infrared-bright carbon stars

Details Multi-wavelength observations of infrared-bright carbon stars Multi-wavelength observations of infrared-bright carbon stars

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991msngr..66...40g&link_type=abstract

ESO Messenger (ISSN 0722-6691), no. 66, p. 40-46.

Astronomy and Astrophysics

Astronomy

3

Carbon Stars, Color-Color Diagram, Infrared Stars, Stellar Luminosity, Infrared Astronomy Satellite, Radiative Transfer, Stellar Spectra

Scientific paper

NIR photometry, spectrophotometry, and CO/HCN data for three carbon stars from the IR complete carbon star sample of Groenewegen et al. (1991) are presented. The three stars include 08074-3615 (group IV), 11318-7256 (group III), and 13477-6532 (group IV). Distances and mass-loss rates are derived assuming a mean luminosity of 7050 luminosity masses. Dust-to-gas ratios of about 0.0007 are derived using a radiative transfer model. It is suggested that the presence of a 3.1 micron feature is a more suitable carbon star identification mark than the HCN/CO ratio.

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