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Search for short-time periodic variations among WR+C binaries

Published online by Cambridge University Press:  07 August 2017

S.V. Marchenko ,
I.I. Antokhin ,
J.-F. Bertrand ,
R. Lamontagne ,
A.F.J. Moffat ,
A. Piceno  and
J.M. Matthews
S.V. Marchenko
Affiliation:
1 Département de Physique, Université de Montréal, C.P. 6128, Succ. A, Montreal, Québec, H3C 337 Canada, and Observatoire du mont Mégantic
I.I. Antokhin
Affiliation:
2 Sternberg Astronomical Institute, Universitetskij Prospect 13, 117234, Moscow, Russia
J.-F. Bertrand
Affiliation:
1 Département de Physique, Université de Montréal, C.P. 6128, Succ. A, Montreal, Québec, H3C 337 Canada, and Observatoire du mont Mégantic
R. Lamontagne
Affiliation:
1 Département de Physique, Université de Montréal, C.P. 6128, Succ. A, Montreal, Québec, H3C 337 Canada, and Observatoire du mont Mégantic
A.F.J. Moffat
Affiliation:
1 Département de Physique, Université de Montréal, C.P. 6128, Succ. A, Montreal, Québec, H3C 337 Canada, and Observatoire du mont Mégantic
A. Piceno
Affiliation:
3 Instituto Nacional de Astrofisica, Optica y Electrónica, Apdos. Postales 216 y 51, Puebla 72000, Pue., México
J.M. Matthews
Affiliation:
4 Department of Geophysics and Astronomy, University of British Columbia, 129—2219 Main Mall, Vancouver, EC, V6T 1Z4, Canada

Abstract

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During the 1992–1993 observing season, WR3, 6, 16, 40, 66, 82 and 134 were monitored in fast photometry mode with time-resolution 0.005—0.01 s. Only WR6 reveals a possible period of P = 0.11 s (semi-amplitude A = 0.025 mag), which is close to the derived equilibrium period of a new-born pulsar in a binary system after the rapid phase of Roche Lobe Over-Flow from the original secondary component.

Type
Session VIII - poster summaries
Information
Symposium - International Astronomical Union , Volume 163: Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution , 1995 , pp. 562 - 564
Copyright
Copyright © Kluwer 1995 

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