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Preliminary results from XMM-Newton observations of the massive Wolf-Rayet binary WR 22 (WN7H+O9III-V)

Published online by Cambridge University Press:  26 May 2016

Eric Gosset ,
Gregor Rauw ,
Jean-Marie Vreux ,
Yaël Nazé ,
Igor I. Antokhin  and
Hugues Sana
Eric Gosset
Affiliation:
Institut d'Astrophysique et de Géophysique, Université de Liège, 17 Allée du 6 août, B-4000 Liège 1 (Sart-Tilman), la Belgique
Gregor Rauw
Affiliation:
Institut d'Astrophysique et de Géophysique, Université de Liège, 17 Allée du 6 août, B-4000 Liège 1 (Sart-Tilman), la Belgique
Jean-Marie Vreux
Affiliation:
Institut d'Astrophysique et de Géophysique, Université de Liège, 17 Allée du 6 août, B-4000 Liège 1 (Sart-Tilman), la Belgique
Yaël Nazé
Affiliation:
Institut d'Astrophysique et de Géophysique, Université de Liège, 17 Allée du 6 août, B-4000 Liège 1 (Sart-Tilman), la Belgique
Igor I. Antokhin
Affiliation:
Institut d'Astrophysique et de Géophysique, Université de Liège, 17 Allée du 6 août, B-4000 Liège 1 (Sart-Tilman), la Belgique
Hugues Sana
Affiliation:
Institut d'Astrophysique et de Géophysique, Université de Liège, 17 Allée du 6 août, B-4000 Liège 1 (Sart-Tilman), la Belgique

Abstract

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We present preliminary results from observations of the massive WR+O binary WR 22 performed with the XMM-Newton observatory. The star is brighter in the X-ray domain near apastron and fainter at periastron. The change in brightness is very progressive and mainly corresponds to a lowering of the soft part of the spectrum.

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. 188 - 189
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

Dumm, Th., Güdel, M., Schmutz, W., Audard, M., Schild, H., Leutenegger, M., van der Hucht, K.A. 2002, in: Jansen, F. et al. (eds.), New Visions of the X-ray Universe in the XMM-Newton and Chandra Era, ESA SP-488, in press.Google Scholar
Gosset, E., Remy, M., Manfroid, J., Vreux, J.-M., Balona, L.A., Sterken, C., Franco, G.A.P. 1991, IBVS 3571, 1.Google Scholar
Jansen, F., Lumb, D., Altieri, B., et al. 2001, A&A (Letters) 365, L1.Google Scholar
Pollock, A.M.T. 1987, ApJ 320, 283.Google Scholar
Rauw, G., Vreux, J.-M., Gosset, E., Hutsemékers, D., Magain, P., Rochowicz, K. 1996, A&A 306, 771.Google Scholar
Rauw, G., Vreux, J.-M., Stevens, I.R., Gosset, E., Sana, H., Jamar, C., Mason, K.O. 2002, A&A 388, 552.Google Scholar
Schweickhardt, J., Schmutz, W., Stahl, O., Szeifert, Th., Wolf, B. 1999, A&A 347, 127.Google Scholar
Seward, F.D., Chlebowski, T. 1982, ApJ 256, 530.Google Scholar