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The Swift monitoring of the colliding wind binary WR 21a

  • The X-ray observations of the colliding wind binary WR 21a is reported. The first monitoring performed by Swift/XRT in order to reveal the phase-locked variation. Our observations cover 201 different epochs from 2013 October 1 to 2015 January 30 for a total exposure of about 306 ks. It is found for the first time that the luminosity varies roughly in inverse proportion to the separation of the two stars before the X-ray maximum but later drops rapidly toward periastron.

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Metadaten
Author:Y. Sugawara, Y. Tsuboi, Y. Maeda, A. M. T. Pollock, P. M. Williams
URN:urn:nbn:de:kobv:517-opus4-88517
Parent Title (English):Wolf-Rayet Stars : Proceedings of an International Workshop held in Potsdam, Germany, 1.–5. June 2015
Document Type:Article
Language:English
Year of Completion:2015
Publishing Institution:Universität Potsdam
Release Date:2016/02/23
First Page:366
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 52 Astronomie / 520 Astronomie und zugeordnete Wissenschaften
Publication Way:Universitätsverlag Potsdam
Collections:Universität Potsdam / Tagungsbände/Proceedings (nicht forlaufend) / Wolf-Rayet Stars: Proceedings of an International Workshop held in Potsdam, Germany, 1.–5. June 2015 / Wolf-Rainer Hamann, Andreas Sander, Helge Todt (Eds.)
Universität Potsdam / Tagungsbände/Proceedings (nicht forlaufend) / Wolf-Rayet Stars: Proceedings of an International Workshop held in Potsdam, Germany, 1.–5. June 2015 / Wolf-Rainer Hamann, Andreas Sander, Helge Todt (Eds.) / Posters
Licence (German):License LogoKeine Nutzungslizenz vergeben - es gilt das deutsche Urheberrecht