Author/Authors :
Rodriguez، J. نويسنده , , Ribo، Josep M. نويسنده , , Goldoni، P. نويسنده , , Fuchs، Y. نويسنده , , Mirabel، I. F. نويسنده , , Chaty، S. نويسنده , , Dhawan، V. نويسنده , , Sizun، P. نويسنده , , Pooley، G. G. نويسنده , , Zdziarski، A. A. نويسنده , , Hannikainen، D. C. نويسنده , , Kretschmar، P. نويسنده , , Cordier، B. نويسنده , , Lund، N. نويسنده ,
Abstract :
We present the result of multi-wavelength observations of the microquasar GRS 1915+105 in a plateau state with a luminosity of ~7.5 *10^38 erg s ^-1 (~40% LEdd), 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.
Keywords :
X-rays , binaries , GRS 1915+105 , Observations , ISM , jets and outflows , stars , Individual , gamma rays
