Spectroscopic Orbits of Three Binaries
Abstract
This paper presents new spectroscopic orbits of three binaries with evolved primaries and periods of the order of a few years, two of them very eccentric. All the orbits were determined primarily from observations made with the DAO 1.2-m telescope and coudé spectrograph. Observations were obtained using the radial velocity spectrometer until it was decommissioned in 2004, and since then using a CCD detector, and cross-correlating the spectra with those of standard stars. It will be evident that the latter procedure leads to smaller observational scatter than the former did.
- Publication:
-
Revista Mexicana de Astronomia y Astrofisica
- Pub Date:
- October 2017
- Bibcode:
- 2017RMxAA..53..333S
- Keywords:
-
- binaries: spectroscopic;
- stars: individual (6 Persei;
- HR 8078;
- HD 212989)