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Long-term variation in the short-period binary system WR46 (WN3P+?)

Published online by Cambridge University Press:  25 May 2016

Pieter M. Veen ,
Arnout M. van Genderen  and
Albert F. Jones
Pieter M. Veen
Affiliation:
Leiden Observatory, PO Box 9513, NL-2300 RA Leiden, the Netherlands
Arnout M. van Genderen
Affiliation:
Leiden Observatory, PO Box 9513, NL-2300 RA Leiden, the Netherlands
Albert F. Jones
Affiliation:
Carter Observatory, Wellington, New Zealand

Abstract

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We studied the short-period (P ≈ 6–8 hr) binary system WR46 using simultaneous photometry and spectroscopy. We show that the long-term photometric variation is accompanied by changes in the equivalent width of the He II Λ5411 emission line and by an apparent period decrease on the rising branch. Furthermore, the brightening of the object is repeating.

Type
Part 2. Models for single star evolution of massive stars: wind + atmosphere + interior
Information
Symposium - International Astronomical Union , Volume 193: Wolf-Rayet Phenomena in Massive Stars and Starburst Galaxies , 1999 , pp. 263 - 264
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

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Veen, P.M., Van Genderen, A.M., Verheijen, M.A.W., et al. 1995, in: ibid. , p. 243 CrossRefGoogle Scholar