Aims: We present the first orbital solution for the Wolf-Rayet star, WR 35a, that was discovered by a spectroscopic monitoring of faint WN-type stars.
Methods: Spectral features of two different components were identified, and thus a method of disentangling the individual spectra of both components was applied. Radial velocities were determined for each component in the binary system.
Results: The orbital solution and component properties of the system were derived. We determined that WR 35a is composed of a WN6 star with a O8.5 V companion orbiting at a 41.90-day period.
Table 2 is available in electronic form at http://www.aanda.org
WR 35a: A new double-lined spectroscopic binary
Authors: Gamen, R.; Collado, A.; Barbá, R.; Chené, A.-N.; St-Louis, N.
