Abstract

SCARFE, C. D.. Three spectroscopic binaries in the bright Star Catalog supplement. Rev. mex. astron. astrofis [online]. 2019, vol.55, n.2, pp.131-139.  Epub Nov 25, 2020. ISSN 0185-1101.  https://doi.org/10.22201/ia.01851101p.2019.55.02.01.

This paper presents spectroscopic orbits of three binaries, HD 121212, HD 148434 and HD 148912, with evolved primaries and periods of order a year, found in a survey of late-type stars listed in the Supplement to the Yale Bright Star Catalog. All the orbits were determined 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.