Hostname: page-component-78c5997874-dh8gc Total loading time: 0 Render date: 2024-11-08T19:28:29.061Z Has data issue: false hasContentIssue false
  • English
  • Français

The disk/jet connection in the enigmatic microquasar Cygnus X-3

Published online by Cambridge University Press:  24 February 2011

Karri I. I. Koljonen ,
Diana C. Hannikainen ,
Michael L. McCollough ,
Guy G. Pooley ,
Sergei A. Trushkin ,
Marco Tavani  and
Robert Droulans
Karri I. I. Koljonen
Affiliation:
Aalto University Metsähovi Radio Observatory, Metsähovintie 114, 02540 Kylmälä, Finland email: [email protected]
Diana C. Hannikainen
Affiliation:
Aalto University Metsähovi Radio Observatory, Metsähovintie 114, 02540 Kylmälä, Finland email: [email protected] Finnish Centre for Astronomy with ESO (FINCA), University of Turku, Väisäläntie 20, FI-21500 Piikkiö, Finland
Michael L. McCollough
Affiliation:
Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138-1516, USA
Guy G. Pooley
Affiliation:
Astrophysics Group, Cavendish Laboratory, 19 J. J. Thomson Avenue, Cambridge CB3 0HE, UK
Sergei A. Trushkin
Affiliation:
Special Astrophysical Observarory RAS, Karachaevo-Cherkassian res, Nizhnij Arkhyz, 36916, Russia
Marco Tavani
Affiliation:
INAF-IASF, I-00133 Rome, Italy
Robert Droulans
Affiliation:
CESR/CNRS – Université de Toulouse, 9 Av. du Colonel Roche, 31028 Toulouse Cedex 04, France
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Simultaneous multi-wavelength observations are crucial for understanding the physics of microquasars, especially the accretion disk/jet connection. The enigmatic microquasar Cygnus X-3 exhibits strong, relativistic jet ejection events producing radio flares up to 20 Jy. These events are preceded by a very soft X-ray state with quenched emission in the radio and hard X-ray bands. Recently, GeV flux was observed by the AGILE and Fermi γ-ray observatories during the newly-identified hypersoft state. By using an extensive database of simultaneous multi-wavelength observations gathered from Cygnus X-3 we can form a more unified picture of the nature of the source and show how the recent γ-ray observations fit into it.

Keywords

Accretionaccretion disks – Binaries: close – Gamma rays: observations – Radio continuum: stars – Stars: windsoutflows – X-rays: binaries – X-rays: individual: Cygnus X-3
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S275: Jets at all Scales , September 2010 , pp. 285 - 289
Copyright
Copyright © International Astronomical Union 2011

References

Carpano, S., Pollock, A. M. T., Prestwich, A., Crowther, P., Wilms, J., Yungelson, L., & Ehle, M. 2007, A&A, 466, L17Google Scholar
Dubus, G., Cerutti, B., & Henri, G. 2010, MNRAS, 404, L55CrossRefGoogle Scholar
Fermi LAT Collaboration et al. 2009, Science, 326, 1512CrossRefGoogle Scholar
Giacconi, R., Gorenstein, P., Gursky, H., & Waters, J. R. 1967, ApJ, 148, L119CrossRefGoogle Scholar
Koljonen, K. I. I., Hannikainen, D. C., McCollough, M. L., Pooley, G. G., & Trushkin, S. A. 2010, MNRAS, 406, 307CrossRefGoogle Scholar
Koljonen, K. I. I. & McCollough, M. L. 2008, in proceedings of 7th INTEGRAL Workshop, PoS (Integral08)075Google Scholar
Mason, K. O., Cordova, F. A., & White, N. E. 1986, ApJ, 309, 700CrossRefGoogle Scholar
McCollough, M. L., Robinson, C. R., Zhang, S. N. et al. 1999, ApJ, 517, 951CrossRefGoogle Scholar
Mioduszewski, A. J., Rupen, M. P., Hjellming, R. M. et al. 2001, ApJ, 553, 766CrossRefGoogle Scholar
Parsignault, D. R., Gursky, H., Kellogg, E. M. et al. 1972, Nature, 239, 123Google Scholar
Prestwich, A. H., et al. 2007, ApJL, 669, L21CrossRefGoogle Scholar
Romero, G. E., Torres, D. F., Kaufman Bernadó, M. M., & Mirabel, I. F. 2003, A&A, 410, L1Google Scholar
Szostek, A., Zdziarski, A. A. & McCollough, M. 2008, MNRAS, 388, 100Google Scholar
Tammi, J. & Hovatta, T. 2010, International Journal of Modern Physics D, 19, 971CrossRefGoogle Scholar
Tavani, M., Bulgarelli, A., Piano, G. et al. 2009, Nature, 462, 620CrossRefGoogle Scholar
van der Klis, M. & Jansen, F. A. 1985, Nature, 313, 768CrossRefGoogle Scholar
van Kerkwijk, M. H., Charles, P. A., Geballe, T. R. et al. 1992, Nature, 355, 703CrossRefGoogle Scholar
Waltman, E. B., Ghigo, F. D., Johnston, K. J., Foster, R. S., Fiedler, R. L., & Spencer, J. H. 1995, AJ, 110, 290CrossRefGoogle Scholar