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Alexandre David-Uraz, Anthony F. J. Moffat, André Nicolas Chené & Nicholas Lange

Tracing WR wind structures by using the orbiting companion in the 29d WC8d + O8-9IV binary CV Ser

Article Open Access

Abstract

We have obtained continuous, high-precision, broadband visible photometry from the MOST satellite of CV Ser over more than a full orbit in order to link the small-scale light-curve variations to extinction due to wind structures in the WR component, thus permitting us to trace these structures. The light-curve presented unexpected characteristics, in particular eclipses with a varying depth. Parallel optical spectroscopy from the Mont Megantic Observatory and Dominion Astrophysical Observatory was obtained to refine the orbital and wind-collision parameters, as well as to reveal line emission from clumps.

Pour citer cet article

Alexandre David-Uraz, Anthony F. J. Moffat, André Nicolas Chené & Nicholas Lange, «Tracing WR wind structures by using the orbiting companion in the 29d WC8d + O8-9IV binary CV Ser», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 80 - Année 2011, 125 - 128 URL : http://popups.ulg.ac.be/0037-9565/index.php?id=2578.

A propos de : Alexandre David-Uraz

Département de Physique, Université de Montréal, Canada

A propos de : Anthony F. J. Moffat

Département de Physique, Université de Montréal, Canada

A propos de : André Nicolas Chené

Herzberg Institute of Astrophysics/National Research Council, Canada, and Facultad de Ciencias Físicas y Matemáticas, Universidad de Concepción, Chile, et Facultad de Ciencias, Universidad de Valparaíso, Chile

A propos de : Nicholas Lange

Herzberg Institute of Astrophysics/National Research Council, Canada