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

Roberto C. Gamen; Virpi S. Niemela

doi:10.1016/S1384-1076(02)00173-2

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

Astrophysics 2009-11-07 v1

Authors: Roberto C. Gamen , Virpi S. Niemela

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Abstract

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.

Keywords

Wolf-Rayet binary spectroscopic binary orbital elements OB absorption lines mass ratio

Cite

@article{arxiv.astro-ph/0208111,
  title  = {The orbit of the double-lined Wolf-Rayet Binary HDE 318016 (= WR98)},
  author = {Roberto C. Gamen and Virpi S. Niemela},
  journal= {arXiv preprint arXiv:astro-ph/0208111},
  year   = {2009}
}

Comments

14 pages, 5 figures, accepted by New Astronomy

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