Simultaneous multi-wavelength observations of GRS 1915+105

Y. Fuchs, Cayo Juan Ramos Rodriguez, I.F. Mirabel, S. Chaty, M. Ribo, V. Dhawan, P. Goldoni, P. Sizun, G.G. Pooley, A.A. Zdziarski, D.C. Hannikainen, P. Kretschmar, B. Cordier, Niels Lund

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    We present the result of multi-wavelength observations of the microquasar GRS 1915 + 105 in a plateau state with a luminosity of similar to7.5 x 10(38) erg s(-1) (similar to40% L-Edd), conducted simultaneously with the INTEGRAL and RXTE satellites, the ESOstarstar/NTT, the Ryle Telescope, the NRAO(starstarstar) 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.
    Original languageEnglish
    JournalAstronomy and Astrophysics
    Issue number3
    Pages (from-to)L35-L39
    Publication statusPublished - 2003


    • stars : individual : GRS 1915+105
    • gamma rays : observations
    • ISM : jets and outflows
    • X-rays : binaries


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