...1,

Present address: School of Chemistry and Physics, University of Adelaide, 5005, Australia.

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... France

UMR 7164 (CNRS, Université Paris VII, CEA, Observatoire de Paris).

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...$M_\odot$

A black hole of mass 3.7^+1.3_-1.0 $M_\odot$ for the compact object was derived by Casares et al. (2005) under the assumption of pseudo-synchronisation of the binary components.

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... TeV

The electron energy at which synchrotron and IC cooling times are equal.

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... photons

The X-ray disk luminosity, $\sim$10³⁴ erg s^-1, is marginally sufficient under this process to meet by itself that of the VHE $\gamma$-ray emission.

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