Symbiotic stars: spectrophotometry at 3-4 and 8-13 μm.
Abstract
The authors present infrared spectrophotometry of 20 symbiotic stars, mostly of the dust-rich variety. HDE330036 is unique in showing an emission feature at 11.3 μm. The remainder combine a hot grey component and/or optically thin silicate emission. A model in which the grey component is due to optically thick silicate dust is not consistent with the spectra. The authors propose instead that iron-based grains, expected to form in the ejecta of cool stars, are heated by the ultraviolet radiation field of the hot companion.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- September 1983
- DOI:
- 10.1093/mnras/204.4.1009
- Bibcode:
- 1983MNRAS.204.1009R
- Keywords:
-
- Companion Stars;
- Emission Spectra;
- Infrared Spectra;
- Stellar Spectrophotometry;
- Symbiotic Stars;
- Cool Stars;
- Stellar Mass Ejection;
- Stellar Models;
- Stellar Spectra;
- Stellar Temperature;
- Astronomy;
- Circumstellar Dust:Symbiotic Stars;
- Infrared Spectra:Symbiotic Stars;
- Symbiotic Stars:Circumstellar Dust;
- Symbiotic Stars:Infrared Spectra