Masers Associated with Two Carbon Stars: V778 Cygni and EU Andromedae
Abstract
The authors present several observations of the 22.2 GHz H2O maser line from two C stars, V778 Cyg and EU And, and the 1665/67 MHz OH maser lines from V778 Cyg. For both sources the intensity of the H2O line has varied by more than a factor of 5 over several months. The authors interpret the systems as being binaries, each with an M star component with a thick shell and a C star component.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- July 1988
- DOI:
- 10.1086/166516
- Bibcode:
- 1988ApJ...330..828L
- Keywords:
-
- Carbon Stars;
- Hydroxyl Emission;
- Stellar Envelopes;
- Stellar Spectra;
- Water Masers;
- Binary Stars;
- Infrared Astronomy Satellite;
- M Stars;
- Maser Outputs;
- Astrophysics;
- MASERS;
- STARS: CARBON;
- STARS: CIRCUMSTELLAR SHELLS;
- STARS: INDIVIDUAL CONSTELLATION NAME: V778 CYGNI;
- STARS: INDIVIDUAL CONSTELLATION NAME: EU ANDROMEDAE