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Bimodal spectral variability of Cygnus X-1 in an intermediate state
J. Malzac, P. O. Petrucci, E. Jourdain +11
We report the results of an observation of Cygnus X-1 with INTEGRAL, that we combine with simultaneous radio observations with the Ryle telescope. Both spectral and variability pro…
The broad-band spectrum of Cygnus X-1 measured by INTEGRAL
M. Cadolle Bel, P. Sizun, A. Goldwurm +9
The INTEGRAL satellite extensively observed the black hole binary Cygnus X-1 from 2002 November to 2004 November during calibration, open time and core program (Galactic Plane Scan…
SIMBOL-X, a formation flying-mission for hard X-ray astrophysics
P. Ferrando, A. Goldwurm, P. Laurent +13
SIMBOL-X is a hard X-ray mission, operating in the ~ 0.5-70 keV range, which is proposed by a consortium of European laboratories in response to the 2004 call for ideas of CNES for…
State transition and flaring activity of IGR J17464-3213/H1743-322 with SPI/INTEGRAL telescope
A. Joinet, E. Jourdain, J. Malzac +4
IGR J17464-3213, already known as the HEAO-1 transient source H1743-322, has been detected during a state transition by the SPI/INTEGRAL telescope. We describe the spectral evoluti…