1998PASP..110.1416M

We combine all previously published radial velocity measurements of the spectroscopic binary WR 141 with new CCD data from 1988-1989 and 1992, complemented by polarimetric broadband measurements from 1989. This enables us to refine the orbital elements [P=21.6895 days, e=0.018, K_WR=118 km.s^–1, K_O=163-194 km.s^–1], estimate the masses of the components [M_WR=36-54 M_☉, M_O=26-33 M_☉ for orbital inclination i=68°], and restore the spectrum of the O star via a specifically designed decomposition algorithm. Along with pronounced erratic variations, the spectral lines of the WR component demonstrate systematic phase-locked variability induced by the radiation field of the hot, luminous O companion.