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24 April 2024 |
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INTEGRAL observations of the black hole candidate H 1743-322 in outburst | | A.N. Parmar
; E. Kuulkers
; T. Oosterbroek
; P. Barr
; R. Much
; A. Orr O.R. Williams
; C. Winkler
; | | Date: |
28 Jul 2003 | | Journal: | Astron.Astrophys. 411 (2003) L421-L426 | | Subject: | astro-ph | | Affiliation: | Research and Scientific Support Department of ESA/ESTEC | | Abstract: | INTEGRAL made 3 observations in 2003 April of the black hole candidate H 1743-322 during the rising part, and close to the maximum, of an outburst. H 1743-322 was previously observed in outburst in 1977-1978. The source is located in a crowded region of the sky (l = 357 deg, b = -2 deg) and at least 18 sources are clearly detected in the field of view of the gamma-ray imager during a 277 ksec exposure. These are well known persistent X-ray binaries and 3 transient sources in outburst. The combined 5-200 keV JEM-X and SPI spectrum of H 1743-322 is well fit with an absorbed ((2.5 10E22 atom/cm2) soft (photon index 2.70 +/- 0.09) power-law model consistent with J 1743-322 being in a high/soft state. | | Source: | arXiv, astro-ph/0307474 | | Services: | Forum | Review | PDF | Favorites | |
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