Duplicity in the solar neighbourhood. III. New spectroscopic elementsfor nine solar-type binary stars.
Abstract
This paper provides the measures, spectroscopic elements as well as a discussion of nine solar-type binary stars in the solar neighbourhood. Among these stars, seven are resolved into double-lined binaries. HD 16620, HD 64096, and HD 81809 are known visual binaries and spectroscopically resolved for the first time. First orbital elements are given for the known variables HD 17433 and HD 66751, and for those previously unknown, HD 61994 and HD 153631. The authors also present the first elements for the secondary component of the star HD 13974, and an orbit of the so-called standard binary star HD 202275. The results obtained suggest that the stars HD 61994, HD 66751, HD 153631 could be resolved by speckle interferometric observations. These nine binaries are part of a systematic radial velocity survey of F-G dwarfs in the solar vicinity.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- April 1988
- Bibcode:
- 1988A&A...195..129D
- Keywords:
-
- Binary Stars;
- Dwarf Stars;
- Late Stars;
- Solar Neighborhood;
- Variable Stars;
- Astronomical Catalogs;
- Cross Correlation;
- H Alpha Line;
- Radial Velocity;
- Stellar Rotation;
- Astrophysics