First INTEGRAL observations of GRS 1915+105
Preprint
- 19 September 2003
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 JEM X-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.Keywords
All Related Versions
- Version 1, 2003-09-19, ArXiv
- Published version: Astronomy & Astrophysics, 411 (1), L415.
This publication has 0 references indexed in Scilit: