Optical Spectroscopy of Red Giants (Review)
Abstract
Accomplishments and problems in the study of mass loss from cool stars in the optical spectrum are reviewed. Accurate mass loss rates remain elusive principally because of inadequate knowledge of density, velocity and ionization structure in the circumstellar shells. Improved rates may be expected from binary star systems. Empirical rates derived for stars in globular clusters are found to be of doubtful validity. It is shown that optical observations can furnish important clues to the understanding of mass loss mechanisms.
- Publication:
-
Mass Loss from Red Giants
- Pub Date:
- July 1985
- DOI:
- 10.1007/978-94-009-5428-1_3
- Bibcode:
- 1985ASSL..117...21G
- Keywords:
-
- Cool Stars;
- Red Giant Stars;
- Stellar Envelopes;
- Stellar Mass Ejection;
- Stellar Spectra;
- Stellar Winds;
- Binary Stars;
- Globular Clusters;
- Optical Emission Spectroscopy;
- Supergiant Stars;
- Astrophysics