Interpretation of circumstellar masers
Abstract
Consideration is given to problems in the theoretical interpretation of masers operating in the circumstellar envelopes about oxygen-rich Mira variables and supergiants. Following a brief review of the dynamics, thermodynamics and chemistry of circumstellar envelopes, current knowledge of the location, directionality, input energy, saturation state and nature of the pumping of circumstellar SiO, H2O and OH masers is indicated. Specific theoretical models of 1612-MHz OH masers, main line OH masers, H2O masers and SiO masers are then considered.
- Publication:
-
Interstellar Molecules
- Pub Date:
- 1980
- Bibcode:
- 1980IAUS...87..551G
- Keywords:
-
- Masers;
- Stellar Envelopes;
- Stellar Radiation;
- Supergiant Stars;
- Variable Stars;
- Astrophysics;
- Hydroxyl Emission;
- Mira Variables;
- Oxygen;
- Silicon Oxides;
- Very Long Base Interferometry;
- Water Masers;
- Astrophysics