Fourth set of INTEGRAL observations of GX339-4: preliminary spectral fit results
Abstract
We present the results of preliminary spectral fits to the fourth period of 130 ksec public INTEGRAL ToO observations of GX 339-4 (see ATels #980, #986, #1000, #1012, #1029), obtained between UT 2007, Mar 16, 17:03 and Mar 18, 07:17. We made joint spectral fits to spectra obtained with the JEM-X (5-20 keV) and IBIS/ISGRI (23-200 keV) instruments. The spectrum has slightly softened with respect to the previous observation (ATel #1029), with a contribution of the disk compared to the power-law emission of 36%.
- Publication:
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The Astronomer's Telegram
- Pub Date:
- March 2007
- Bibcode:
- 2007ATel.1032....1C
- Keywords:
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- X-ray;
- Gamma Ray;
- Binaries;
- Black Holes;
- Transients;
- Variables