Observations and interpretation of the infrared spectrum of HD 44179.
Abstract
Infrared spectra of HD 44179 have been obtained for the 3040-, 1150-, and 890-kayser emission features. The strengths of the features put constraints on the possible constituents of the materials responsible for each emission feature. The 3040-kayser feature can be due to emission either from a solid (if it arises from a different region than the 890-kayser feature) or from a gas-phase molecule. The 8-13-micron spectrum is fitted with a simple model employing carbonates plus a dielectric in emission and silicates in absorption. It is suggested that amorphous carbon is the dielectric responsible for the featureless underlying continuum.
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- June 1977
- DOI:
- 10.1086/130128
- Bibcode:
- 1977PASP...89..335B
- Keywords:
-
- Early Stars;
- Giant Stars;
- Infrared Astronomy;
- Stellar Spectra;
- A Stars;
- B Stars;
- Binary Stars;
- Carbon;
- Emission Spectra;
- Astrophysics;
- Emission-Line Stars:Infrared Spectra