Properties of the hard X-ray radiation from Cygnus X-1 and 1 E 1740 . 7-2942


The entire dataset of the GRANAT/SIGMA observations of Cyg X-1 and 1E1740.7-2942 in 1990–1994 was analyzed in order to search for correlations between primary observational characteristics of the hard X-ray (40–200 keV) emission – the hard X-ray luminosity L X , the hardness of the spectrum (quantified in terms of the best-fit thermal bremsstrahlung… (More)


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