Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985afz....23..245o&link_type=abstract
(Astrofizika, vol. 23, Sept.-Oct. 1985, p. 245-254) Astrophysics (ISSN 0571-7132), vol. 23, no. 2, March 1986, p. 509-513. Trans
Astronomy and Astrophysics
Astrophysics
3
Carbon Stars, Stellar Color, Stellar Spectrophotometry, Stellar Temperature, Stellar Envelopes
Scientific paper
The color temperatures of 52 carbon stars have been determined by means of the monochromatic color indices for the corresponding spectral range. Comparison of the Tc that have been determined for stars of the spectral classes R and N shows that for the former there is a definite dependence of the R subclass on the temperature. For the latter, this is not observed. When the C classification is considered, it is found to be weakly correlated to the color temperature, correlation being almost absent in the case of the later types. It is assumed that U Cam, T Cnc, RY Dra, T Lyr, W Ori, V CrB, and SS Vir may be surrounded by circumstellar dust envelopes whose masses and densities vary with the time.
Nersisian S. E.
Oganesian Kh. R.
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