Spectroscopic binaries as a source for astrometric and speckle interferometric studies.
Abstract
Published orbital elements of spectroscopic binaries are systematically examined to provide lists of systems which might profitably be observed by astrometric and speckle interferometric techniques. The importance of observing these spectroscopic systems with other techniques is emphasized. Consideration is given to image-blending effects on astrometric amplitude predictions. Angular separation predictions for single-lined systems use a mass-luminosity relation to approximately account for the semimajor axis of the unseen component. The interferometric possibilities are found to be large with some 73 systems possibly resolvable with a 5-meter telescope. A 2-meter telescope could possibly resolve 29 systems. The astrometric candidates are more limited with perhaps ten systems suitable for study. Key words: spectroscopic binaries - astrometric binaries - speckle interferometry
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- June 1976
- DOI:
- 10.1086/129949
- Bibcode:
- 1976PASP...88..317M