High resolution spectroscopy of R Coronae Borealis during the 1988— 1989 minimum
Abstract
Moderate-resolution spectra of the C2 Swan 0-1 bandhead, the Na I D lines and the KI resonance lines near 7660 Å obtained at minimum light during the 1988-1989 decline of R CrB are discussed and interpreted in terms of a popular model for R CrB declines. High-resolution spectra obtained at maximum light show blue-shifted chromospheric emission in the cores of the Na I D and the Sc π 4246.8 Å lines
- Publication:
-
Journal of Astrophysics and Astronomy
- Pub Date:
- December 1990
- DOI:
- 10.1007/BF02709762
- Bibcode:
- 1990JApA...11..475L
- Keywords:
-
- Astronomical Spectroscopy;
- Corona Borealis Constellation;
- D Lines;
- K Lines;
- Resonance Lines;
- Astronomical Models;
- C Band;
- High Resolution;
- Photosphere;
- Radial Velocity;
- Sodium;
- Swan Bands;
- Astrophysics;
- spectroscopy;
- R CrB;
- 1988-1989 minimum