A study of visual double stars with early type primaries. I. Spectroscopic results.
Abstract
Attention is given to spectral peculiarities found in data on the spectral classes of 486 stars in 254 visual doublet or multiplet systems with O or B type primaries, in order to isolate a group of very young stars that may serve for the study of early stellar evolution characteristics. It is noted that the material contains a substantial fraction of secondaries that are likely to be physical, and that several of these may be in the premain-sequence phase of stellar evolution, or have reached the zero-age main sequence.
- Publication:
-
Astronomy and Astrophysics Supplement Series
- Pub Date:
- January 1983
- Bibcode:
- 1983A&AS...51..143G
- Keywords:
-
- Binary Stars;
- Early Stars;
- Hot Stars;
- Stellar Evolution;
- Stellar Spectra;
- Stellar Spectrophotometry;
- B Stars;
- Companion Stars;
- Hertzsprung-Russell Diagram;
- O Stars;
- Peculiar Stars;
- Stellar Models;
- Visible Spectrum;
- Astronomy