Volume 409, Number 3, October III 2003
|Page(s)||L35 - L39|
|Published online||17 November 2003|
Letter to the Editor
Service d'Astrophysique (CNRS FRE 2591), CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
2 Integral Science Data Center, Chemin d'Ecogia, 16, 1290 Versoix, Switzerland
3 Instituto de Astonomía y Física del Espacio / CONICET, cc67, suc 28, 1428 Buenos Aires, Argentina
4 Université Paris 7, Fédération APC, 2 place Jussieu, 75005 Paris, France
5 National Radio Astronomy Observatory, Socorro, NM 87801, USA
6 Mullard Radio Astronomy Observatory, Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE, UK
7 N. Copernicus Astronomical Center, Bartycka 18, 00-716 Warsaw, Poland
8 Observatory, PO Box 14, 00014 University of Helsinki, Finland
9 Max-Planck-Institut fuer Extraterrestrische Physik, Giessenbachstrasse, 85748 Garching, Germany
10 Danish Space Research Institute, Juliane Maries Vej 30, 2100 Copenhagen Oe, Denmark
Corresponding author: Y. Fuchs, email@example.com
Accepted: 1 September 2003
We present the result of multi-wavelength observations of the microquasar GRS 1915+105 in a plateau state with a luminosity of erg s-1 (~40% ), conducted simultaneously with the INTEGRAL and RXTE satellites, the ESO/NTT, the Ryle Telescope, the NRAO VLA and VLBA, in 2003 April 2–3. For the first time were observed concurrently in GRS 1915+105 all of the following properties: a strong steady optically thick radio emission corresponding to a powerful compact jet resolved with the VLBA, bright near-IR emission, a strong QPO at 2.5 Hz in the X-rays and a power law dominated spectrum without any cutoff in the 3–400 keV range.
Key words: stars: individual: GRS 1915+105 / X-rays: binaries / gamma rays: observations / ISM: jets and outflows
Based on observations with INTEGRAL, an ESA project with instruments and science data centre funded by ESA member states (especially the PI countries: Denmark, France, Germany, Italy, Switzerland, Spain), Czech Republic and Poland, and with the participation of Russia and the USA.
© ESO, 2003
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