Simultaneous multi-wavelength observations of GRS 1915+105

Details Simultaneous multi-wavelength observations of GRS 1915+105 Simultaneous multi-wavelength observations of GRS 1915+105

2003-09-03

arxiv.org/abs/astro-ph/0309091v1

Astron.Astrophys.409:L35-L39,2003

Astronomy and Astrophysics

Astrophysics

5 pages, 5 figures (4 colour figures), accepted by A&A Letters

Scientific paper

10.1051/0004-6361:20031338

We present the result of multi-wavelength observations of the microquasar GRS 1915+105 in a plateau state with a luminosity of ~7.5x10^{38) erg s-1 (~40% L_Edd), 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.

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