%0 Journal Article %T First simultaneous multi-wavelength observations of the black hole candidate IGR J17091-3624 %T ATCA, INTEGRAL, Swift, and RXTE views of the 2011 outburst %+ Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)) %+ Space Sciences Laboratory [Berkeley] (SSL) %+ Australia Telescope National Facility (ATNF) %+ INAF - Osservatorio Astronomico di Milano (OAM) %+ European Space Astronomy Centre, Urb. Villafranca del Castillo, E-28692, Villanueva de la Cañada, Madrid %A Rodriguez, J. %A Corbel, S. %A Caballero, I. %A Tomsick, J. A. %A Tzioumis, T. %A Paizis, A. %A Cadolle Bel, M. %A Kuulkers, E. %Z Letter to the Editor %< avec comité de lecture %@ 0004-6361 %J Astronomy and Astrophysics - A&A %I EDP Sciences %V 533 %P L4 %8 2011 %D 2011 %Z 1108.0666 %Z 2011A&A...533L...4R %R 10.1051/0004-6361/201117511 %K accretion %K accretion disks %K X-rays: binaries %K radio continuum: stars %K stars: individual: IGR J1709-8722 %Z Sciences of the Universe [physics] %Z Sciences of the Universe [physics]/Astrophysics [astro-ph]Journal articles %X We present the results of the first four (quasi-)simultaneous radio (ATCA), X-ray (Swift, RXTE), and γ-ray (INTEGRAL) observations of the black hole candidate IGR J17091-3624, performed in February and March 2011. The X-ray analysis shows that the source was in the hard state, and then it transited to a soft intermediate state. We study the correlated radio/X-ray behaviour of this source for the first time. The radio counterpart to IGR J17091-3624 was detected during all four observations with the ATCA. In the hard state, the radio spectrum is typical of optically thick synchrotron emission from a self-absorbed compact jet. In the soft intermediate state, the detection of optically thin synchrotron emission is probably due to a discrete ejection event associated with the state transition. The position of IGR J17091-3624 in the radio versus X-ray luminosity diagram (aka fundamental plane) is compatible with that of the other black hole sources for distances greater than 11 kpc. IGR J17091-3624 also appears as a new member of the few sources that show a strong quenching of radio emission after the state transition. Using the estimated luminosity at the spectral transition from the hard state, and for a typical mass of 10 M, we estimate a distance to the source between ~11 and ~17 kpc, compatible with the radio behaviour of the source. %G English %2 https://insu.hal.science/insu-03623457/document %2 https://insu.hal.science/insu-03623457/file/aa17511-11.pdf %L insu-03623457 %U https://insu.hal.science/insu-03623457 %~ CEA %~ INSU %~ CNRS %~ OPENAIRE %~ UP-SCIENCES