Abstract
We present data from the first of six monitoring Open Time observations of GRS 1915+105 undertaken with the orbiting INTEGRAL satellite. The source was clearly detected with all three X-ray and gamma-ray instruments on board. GRS 1915+105 was in a highly variable state, as demonstrated by the JEMX-2 and ISGRI lightcurves. These and simultaneous RXTE/PCA lightcurves point to a novel type of variability pattern in the source. In addition, we fit the combined JEM X-2 and ISGRI spectrum between 3-300 keV with a disk blackbody+powerlaw model leading to typical parameter values found earlier at similar luminosity levels. A new transient, IGR J19140+098, was discovered during the present observation.
Original language | English |
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Journal | Astronomy and Astrophysics |
Volume | 411 |
Issue number | 1 |
Pages (from-to) | L415-L419 |
ISSN | 0004-6361 |
DOIs | |
Publication status | Published - 2003 |
Externally published | Yes |
Keywords
- X-rays : GRS 1915+105
- X-rays : binaries