Radial Velocities of Fundamental Southern Stars

Newly determined radial velocities are given for 12 standard-velocity stars and 63 other bright stars south of the equator. The plates, taken with the three-prism Cassegrain spectrograph of the 30-inch reflector, have a dispersion of 36 A/mm at Hγ. The Stromlo velocities of the standard-velocity stars were found to agree satisfactorily with measurements at other observatories on the Lick system. Velocity residuals for individual spectral lines are discussed. The stars on the programme have been chosen from the FK3 and N30 position catalogues. At least three spectrograms of each star have been measured. A luminosity class is given on the revised Yerkes system for stars of early type. 29 new constant velocities are announced, as well as 18 whose variability has been detected for the first time. Observations have been resumed on 15 stars previously known to have variable velocity.