The possibly massive symbiotic system V 1329 Cygni
Abstract
A new radial velocity curve of V 1329 Cyg has been obtained from emission lines originating around an evolved star. The latter might be faced by an M-type mate, whose mass is larger than 23±6 solar masses. The system seems at |Z|>250 pc from the galactic plane. The λ6830 unidentified band, found in V 1329 Cyg and among BQ [ ] stars, symbiotic stars and a few planetary nebulae, could be used as a diagnostic tool to identify very evolved stars. The close similarity of the optical spectrum of V 1329 Cyg to that of the optical counterpart of GX 1+4 is remarkable.
- Publication:
-
Astrophysics and Space Science
- Pub Date:
- April 1981
- DOI:
- 10.1007/BF00648640
- Bibcode:
- 1981Ap&SS..75..237I
- Keywords:
-
- Diagnostic Tool;
- Radial Velocity;
- Emission Line;
- Optical Spectrum;
- Close Similarity