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The pertinence of jet emitting discs in microquasars. Theory and comparison to observations

Published online by Cambridge University Press:  24 February 2011

Pierre-Olivier Petrucci ,
Jonathan Ferreira ,
Gilles Henri ,
Julien Malzac  and
Cedric Foellmi
Pierre-Olivier Petrucci
Affiliation:
Laboratoire d'Astrophysique de GrenOble, Université Joseph Fourier - Grenoble 1 / CNRS UMR 5571, BP 53, 38041 Grenoble Cedex 09, France email: [email protected]
Jonathan Ferreira
Affiliation:
Laboratoire d'Astrophysique de GrenOble, Université Joseph Fourier - Grenoble 1 / CNRS UMR 5571, BP 53, 38041 Grenoble Cedex 09, France email: [email protected]
Gilles Henri
Affiliation:
Laboratoire d'Astrophysique de GrenOble, Université Joseph Fourier - Grenoble 1 / CNRS UMR 5571, BP 53, 38041 Grenoble Cedex 09, France email: [email protected]
Julien Malzac
Affiliation:
Centre d'Etude Spatial des Rayonnement UMR 5187 9, av du Colonel Roche BP 44346 31028 Toulouse Cedex 4France
Cedric Foellmi
Affiliation:
Laboratoire d'Astrophysique de GrenOble, Université Joseph Fourier - Grenoble 1 / CNRS UMR 5571, BP 53, 38041 Grenoble Cedex 09, France email: [email protected]
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Abstract

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Jet Emitting Disc (JED) has dynamical properties quite different from both the standard and advection dominated discs. It also exhibits three different thermal equilibrium branches at a given radius: two stable (cold and hot) and one intermediate unstable. The hot solution has all the characteristics of the so-called “hot corona” generally invoked in XrB sytems in the Low/Hard states. We detail the energetics and radiative expectations of our model and show their good agreement with those observed in Cygnus X-1 in terms of jet power, jet velocity and spectral emission.

Keywords

X-rays: binariesaccretionaccretion disksmagnetic fields: MHD
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S275: Jets at all Scales , September 2010 , pp. 307 - 308
Copyright
Copyright © International Astronomical Union 2011

References

Blandford, R. D. & Payne, D. G. 1982, MNRAS, 199, 883CrossRefGoogle Scholar
Ferreira, J. & Pelletier, G. 1993, A&A, 276, 625+Google Scholar
Malzac, J., Belmont, R., & Fabian, A. C. 2009, MNRAS, 400, 1512CrossRefGoogle Scholar
Petrucci, P.-O., Ferreira, J., Henri, G., Malzac, J., & Foellmi, C. 2010, A&A, in press (arXiv:1007.1478)Google Scholar