The Wolf-Rayet binary WR141 (WN5o+O5V-III) revisited

被引：40
|
作者：
Marchenko, SV
Moffat, AFJ
Eenens, PRJ
机构：
[1] Univ Montreal, Dept Phys, Montreal, PQ H3C 3J7, Canada
[2] Univ Guanajuato, Dept Astron, Guanajuato 36000, Mexico
[3] Observ Mont Megant, Montreal, PQ, Canada
来源：
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 1998年 / 110卷 / 754期
关键词：
D O I：
10.1086/316280
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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 (163-193) km s(-1)], estimate the masses of the components [M-WR (36-54) M., M-o = (26-33) M. for orbital inclination i = 68 degrees], 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.
引用
收藏
页码：1416 / 1422
页数：7
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