RETICON Observations of the Yellow Symbiotic Star Ag-Draconis
Abstract
Reticon spectroscopic observations of the yellow symbiotic star AG Draconis are reported. Small rapid (15 30 min) changes in the intensities of the He i λ5015 Å and He i λ6678 Å singlet lines, and of the Hγ line are observed. The first observational evidence of presence of the unidentified band at 7088 Å in this star is also reported.
- Publication:
-
Astrophysics and Space Science
- Pub Date:
- March 1983
- DOI:
- 10.1007/BF00650214
- Bibcode:
- 1983Ap&SS..91...63F
- Keywords:
-
- Abundance;
- Spectral Energy Distribution;
- Stellar Color;
- Stellar Spectra;
- Stellar Spectrophotometry;
- Symbiotic Stars;
- Emission Spectra;
- Helium;
- Hydrogen;
- Line Spectra;
- Spectrum Analysis;
- Astronomy