The orbit of the double-lined Wolf-Rayet Binary HDE 318016 (= WR98)

Details The orbit of the double-lined Wolf-Rayet Binary HDE 318016 (= WR98) The orbit of the double-lined Wolf-Rayet Binary HDE 318016 (= WR98)

2002-08-06

arxiv.org/abs/astro-ph/0208111v1

New Astron. 7 (2002) 511-520

Astronomy and Astrophysics

Astrophysics

14 pages, 5 figures, accepted by New Astronomy

Scientific paper

10.1016/S1384-1076(02)00173-2

We present the discovery of OB type absorption lines superimposed to the emission line spectrum and the first double-lined orbital elements for the massive Wolf-Rayet binary HDE 318016 (=WR 98), a spectroscopic binary in a circular orbit with a period of 47.825 days. The semiamplitudes of the orbital motion of the emission lines differ from line to line, indicating mass ratios between 1 and 1.7 for M_WR/M_OB.

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