X-ray and soft gamma-ray behaviour of the Galactic source 1E 1743.1-2843

M. Del Santo; L. Sidoli; A. Bazzano; M. Cocchi; G. De Cesare; A. Paizis; P. Ubertini

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X-ray and soft gamma-ray behaviour of the Galactic source 1E 1743.1-2843

M. Del Santo·L. Sidoli·A. Bazzano·M. Cocchi·G. De Cesare·A. Paizis·P. Ubertini

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Abstract

The X-ray persistent source 1E 1743.1-2843, located in the Galactic Centre region, has been detected by all X-ray telescope above 2 keV, whereas it is not visible in the soft X-rays (i. e. Rosat) because of the high column density along the line-of-sight. Moreover, the nature of this source remains still unknown. The gamma-ray satellite INTEGRAL has long observed the Galactic Centre region in the framework of the Core Programme. We report on results of two years of INTEGRAL observations of 1E 1743.1--2843 detected for the first time in the soft gamma-ray band. Since the source does not show any evidence for strong variability, we present the broad-band spectral analysis using not simultaneous XMM-Newton observations.

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M. Del Santo, L. Sidoli, A. Bazzano, M. Cocchi, G. De Cesare, A. Paizis, P. Ubertini. 2005-11-10. X-ray and soft gamma-ray behaviour of the Galactic source 1E 1743.1-2843. https://arxiv.org/abs/astro-ph/0511301

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