Abstract
The authors present preliminary results of a new spectral study of the O3 V+O8 V double lined binary system HD 93205. The observations have been carried out with the REOSC Cassegrain échelle spectrograph attached to the 2.15-m telescope at the Complejo Astronómico El Lleoncito (CASLEO), San Juan, Argentina. Combining the data with other data available from the literature they obtained a most probable period of 6.0807±0.0001 days for the radial velocity variations of the O3 V component. The new orbital solution suggests an eccentricity of 0.36±0.01, somewhat lower than that obtained previously, and radial velocity semiamplitudes of 135±3 km s-1 and 334±4 km s-1 for the binary components, resulting in minimum masses of 37 and 15 Msun, respectively.
