Spectropscopic Observations of the Symbiotic Binary RW Hydrae
Abstract
Ultraviolet/optical spectrophotometry and infrared photometry show that the symbiotic binary RW Hya is comprised of an M giant (with L of about 1000 solar luminosities) and a compact object (with L of about 200 solar luminosities) which resembles the central star of a planetary nebula. The luminosity of the hot component is produced by a nuclear shell source which is replenished by the wind of the red giant at a rate of about 10 to the -8th solar mass/yr. Results indicate that the binary is surrounded by an H II region (of radius of about 10 AU) which gives rise to the observed emission lines and radio emission. The He(2+) and O(2+) regions are found to be confined to the immediate vicinity of the hot component.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- May 1987
- DOI:
- 10.1086/165211
- Bibcode:
- 1987ApJ...316..427K
- Keywords:
-
- Binary Stars;
- Spectral Energy Distribution;
- Stellar Physics;
- Stellar Spectra;
- Stellar Spectrophotometry;
- Symbiotic Stars;
- H Ii Regions;
- Infrared Photometry;
- Red Giant Stars;
- Stellar Temperature;
- Ultraviolet Spectroscopy;
- Visible Spectrum;
- Astrophysics;
- STARS: BINARIES;
- STARS: SYMBIOTIC