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The massive Wolf-Rayet binary WR 98 (WN7/WC+08-9)

Published online by Cambridge University Press:  26 May 2016

Roberto C. Gamen  and
Virpi S. Niemela
Roberto C. Gamen
Affiliation:
Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosque s/n, B1900FWA, La Plata, Argentina
Virpi S. Niemela
Affiliation:
Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosque s/n, B1900FWA, La Plata, Argentina

Abstract

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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 WR 98 (HDE 318016, WN7/C+08-9), a spectroscopic binary in a circular orbit with a period of 47.825 d. The semi-amplitudes of the orbital motion of the emission lines differ from line to line, indicating a mass ratio in the range q ≡ MWR/MOB = 1–1.8.

Type
Part 1. Atmospheres of Massive Stars
Information
Symposium - International Astronomical Union , Volume 212: A Massive Star Odyssey: From Main Sequence to Supernova , 2003 , pp. 184 - 185
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

Gamen, R.C., Niemela, V.S. 2002, New Astron. 7, 511.Google Scholar
van der Hucht, K.A. 2001, New Astron. Reviews 45, 135.CrossRefGoogle Scholar
van der Hucht, K.A., Conti, P.S., Lundström, I., et al. 1981, Space Sci. Reviews 28, 227.CrossRefGoogle Scholar
Niemela, V.S. 1991, in: van der Hucht, K.A. & Hidayat, B. (eds.), Wolf-Rayet Stars and Interrelations with Other Massive Stars in Galaxies, Proc. IAU Symp. No. 143 (Dordrecht: Kluwer), p. 201.CrossRefGoogle Scholar
Smith, L.F. 1968, MNRAS 138, 109.Google Scholar
Smith, L.F., Shara, M.M., Moffat, A.F.J. 1996, MNRAS 281, 163.Google Scholar