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Abstract: The microquasar 1E 1740.7-2942 is one of the most appealing source of theGalactic Centre region. The high energy feature detected once by SIGMA has beensearched in the last years by INTEGRAL, but never confirmed. Classified as apersistent source, on 2004 it showed a quiescent-like state. In fact for fewmonth 1E 1740.7-2942 was below the detector sensitivity level. We present thelong term temporal behaviour of 1E 1740.7-2942 observed by INTEGRAL and RXTE in2004 and 2005, as well as preliminary results on possible spectral transitions.



Author: M. Del Santo, A. Bazzano, N. Bezayiff, D. M. Smith, P. Ubertini, G. De Cesare, M. Federici

Source: https://arxiv.org/







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