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Open Astronomy

formerly Baltic Astronomy

Editor-in-Chief: Barbuy, Beatriz


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Band 21, Heft 1-2

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The X-Ray Evolution of the Symbiotic Star V407 Cyg During its 2010 Outburst

K. Mukai
  • CRESST and X-ray Astrophysics Laboratory, NASA/GSFC, Greenbelt, MD 20771, United States of America United States of America
  • Department of Physics, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, United States of America
  • Weitere Artikel des Autors:
  • De Gruyter OnlineGoogle Scholar
/ T. Nelson
  • CRESST and X-ray Astrophysics Laboratory, NASA/GSFC, Greenbelt, MD 20771, United States of America United States of America
  • Department of Physics, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, United States of America United States of America
  • School of Physics and Astronomy, University of Minnesota, 115 Church St. SE, Minneapolis, MN 55455, United States of America
  • Weitere Artikel des Autors:
  • De Gruyter OnlineGoogle Scholar
/ L. Chomiuk
  • Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138, United States of America United States of America
  • National Radio Astronomy Observatory, P.O. Box 0, Socorro, MN 87801, United States of America United States of America
  • Jansky Fellow, United States of America
  • Weitere Artikel des Autors:
  • De Gruyter OnlineGoogle Scholar
/ D. Donato
  • CRESST and Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, MD 20771, United States of America United States of America
  • Department of Astronomy, University of Maryland, College Park, MD 20742, United States of America
  • Weitere Artikel des Autors:
  • De Gruyter OnlineGoogle Scholar
/ J. Sokoloski
  • CRESST and X-ray Astrophysics Laboratory, NASA/GSFC, Greenbelt, MD 20771, United States of America United States of America
  • Columbia Astrophysics Laboratory, 550 W. 120th St., 1027 Pupin Hall, Columbia University, New York, NY 10027, United States of America
  • Weitere Artikel des Autors:
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Online erschienen: 23.03.2017 | DOI: https://doi.org/10.1515/astro-2017-0358

Abstract

We present a summary of Swift and Suzaku X-ray observations of the 2010 nova outburst of the symbiotic star, V407 Cyg. the Suzaku spectrum obtained on day 30 indicates the presence of the supersoft component from the white dwarf surface, as well as optically thin component from the shock between the nova ejecta and the Mira wind. the Swift observations then allow us to track the evolution of both components from day 4 to day 150. Most notable is the sudden brightening of the optically thin component around day 20. We identify this as the time when the blast wave reached the immediate vicinity of the photosphere of the Mira. We have developed a simpe model of the blast wave - wind interaction that can reproduce the gross features of the X-ray evolution of V407 Cyg. If the model is correct, the binary separation is likely to be larger than previously suggested and the mass-loss rate of the Mira is likely to be relatively low.

Keywords: stars; symbiotic; white dwarfs; X-rays; stars

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Artikelinformationen

Erhalten: 01.09.2011

Angenommen: 15.09.2011

Online erschienen: 23.03.2017

Erschienen im Druck: 01.06.2012


Quellenangabe: Open Astronomy, Band 21, Heft 1-2, Seiten 54–61, ISSN (Online) 2543-6376, DOI: https://doi.org/10.1515/astro-2017-0358.

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© 2017. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. BY-NC-ND 4.0

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