Infrared spectra of HM Sagittae and V1016 Cygni.
Abstract
Spectrophotometry of HM Sge from 2 to 13 microns is presented along with 2 to 4-micron spectrophotometry of V1016 Cyg. From 2.5 to 8 microns, the spectrum of HM Sge can be represented by a 950-K blackbody, and a strong silicate emission feature is seen from 8 to 13 microns. Both HM Sge and V1016 Cyg show evidence of CO absorption at 2.3 microns. It is suggested that the infrared radiation from these objects arises from a combination of emission by optically thin dust and by the reddened photosphere of a cool star.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- July 1978
- DOI:
- 10.1086/182736
- Bibcode:
- 1978ApJ...223L..93P
- Keywords:
-
- Infrared Spectra;
- Photosphere;
- Stellar Atmospheres;
- Stellar Spectrophotometry;
- Black Body Radiation;
- Interstellar Radiation;
- Optical Thickness;
- Silicates;
- Stellar Envelopes;
- Stellar Spectra;
- Astronomy;
- Circumstellar Shells;
- Emission-Line Objects:Infrared Spectra;
- Infrared Spectra:Symbiotic Stars