Contribution to the study of composite spectra: XII. Spectroscopic orbits of eight southern stars

We present the results of a radial-velocity study of eight southern SB1 spectroscopic binaries with composite spectra: HD 34318-9, HD 47579-80, HD 70442-3, HD 74946-7, HD 102171-2, HD 120901-2, HD 168701-2, and HD 174191-2. The observations were made at Haute-Provence observatory with the CORAVEL instrument between 1982 and 2006. From the radial-velocity measurements of the cool components, we derive the orbital elements of those spectroscopic binaries. Using all the available data, we obtain an estimation of the orbital inclination and the angular separation of the two components. Finally we discuss the rotation-revolution synchronism of the cool components.