Fundamental parameters of Cepheids. V. Additional photometry and radial velocity for southern Cepheids

摘要

I present photometric and radial velocity data for Galactic Cepheids, most ofthem being in the southern hemisphere. There are 1250 Geneva 7-colorphotometric measurements for 62 Cepheids, the average uncertainty permeasurement is better than 0.01 mag. A total of 832 velocity measurements havebeen obtained with the CORAVEL radial velocity spectrograph for 46 Cepheids.The average accuracy of the radial velocity data is 0.38 km/s. There are 33stars with both photometry and radial velocity data. I discuss the possiblebinarity or period change that these new data reveal. I also present reddeningsfor all Cepheids with photometry. The data are available electronically.