Spectroscopic Monitoring of Southern Galactic O and WN Stars

Gamen, R.; Barbá, R. H.; Morrell, N. I.; Arias, J.; Maíz Apellániz, J.
Massive Stars: Fundamental Parameters and Circumstellar Interactions (Eds. P. Benaglia, G. L. Bosch, & C. E. Cappa) Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias) Vol. 33, pp. 54-54 (2008)


We are conducting a spectroscopic monitoring of O- and WN-type stars for which there is no indication of multiplicity in the Galactic O-Stars Catalog (Maíz-Apellániz et al. 2004) or in the VIIth Catalog of Galactic Wolf-Rayet Stars (van der Hucht 2001). We search for radial-velocity (RV) variations indicative of orbital motion.