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An ultraviolet radial velocity orbit for WR140 (WC7+O4-5)

Published online by Cambridge University Press:  07 August 2017

D.Y.A. Setia Gunawan ,
K.A. van der Hucht ,
D.J. Stickland ,
C. Lloyd ,
P. M. Williams  and
W. Wamsteker
D.Y.A. Setia Gunawan
Affiliation:
Space Research Organization Netherlands, Utrecht, The Netherlands
K.A. van der Hucht
Affiliation:
Space Research Organization Netherlands, Utrecht, The Netherlands
D.J. Stickland
Affiliation:
Space Research Organization Netherlands, Utrecht, The Netherlands
C. Lloyd
Affiliation:
Rutherford Appleton Laboratory, United Kingdom
P. M. Williams
Affiliation:
Royal Observatories, Edinburgh, United Kingdom
W. Wamsteker
Affiliation:
ESA IUE Observatory, Madrid, Spain

Abstract

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Ultraviolet high-resolution SWP images of the binary system WR140 (HD 193793, WC7+O4-5) were taken with IUE over the period 1979 — 1993. This poster presents a radial-velocity study of the absorption lines, attributed to the O-type component, applying the infrared period of P = 2900 days.

Keywords

stars: stars: Wolf-Rayetbinariesultravioletindividual: WR140
Type
Session VII - poster summaries
Information
Symposium - International Astronomical Union , Volume 163: Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution , 1995 , pp. 508 - 509
Copyright
Copyright © Kluwer 1995 

References

Stickland, D.J., Lloyd, C. 1990, The Observatory 110, 1 Google Scholar
Williams, P.M., van der Hucht, K.A., Pollock, A.M.T., Florkowski, D.R., van der Woerd, H., Wamsteker, W.M. 1990, MNRAS 243, 662 (WHPFWW) Google Scholar