Multi-wavelength INTEGRAL network (MINE) observations of the microquasar GRS 1915+105
/ Authors
Y. Fuchs, J. Rodriguez, S. Shaw, P. Kretschmar, M. Ribó, S. Chaty, I. Mirabel, V. Dhawan, G. Pooley, I. Brown
and 11 more authors
R. Spencer, Duygu Sap, Isdc, U. Southampton, Mpe, 7. Univ.Paris, Iafe, Nrao, Mrao, J. Bank, U. Helsinki
/ Abstract
We present the international collaboration MINE (Multi-lambda Integral NEtwork) aimed at conducting multi-wavelength observations of X-ray binaries and microquasars simultaneously with the INTEGRAL gamma-ray satellite. We will focus on the 2003 March-April campaign of observations of the peculiar microquasar GRS 1915+105 gathering radio, IR and X-ray data. The source was observed 3 times in the plateau state, before and after a major radio and X-ray flare. It showed strong steady optically thick radio emission corresponding to powerful compact jets resolved in the radio images, bright near-infrared emission, a strong QPO at 2.5 Hz in the X-rays and a power law dominated spectrum without cutoff in the 3-300 keV range. We compare the different observations, their multi-wavelength light curves, including JEM-X, ISGRI and SPI, and the parameters deduced from fitting the spectra obtained with these instruments on board INTEGRAL.