Spectral Classifications for New of Previously Unlassified Carbon Stars.
Abstract
New spectral classifications are presented for 112 stars whose objective prism spectra show absorption features due to C3 or to very strong red CN; 102 of these are newly identified red carbon stars. Division into spectral types R and N has been possible in many cases A previously recognized variation in the relative numbers of N- and R-type stars with galactic longitude is reinforced. Five additional stars are suggested to belong to the group whose members, like GP Ori and R CMi, combine carbon and S-type spectral features; identification charts are furnished for the non-BD stars among the suggested new members of this group.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- August 1965
- DOI:
- Bibcode:
- 1965ApJ...142..712S