INTEGRAL monitoring of the Black Hole candidate 1E 1740.7-2942
astro-ph
/ Authors
M. Del Santo, A. Bazzano, D. M. Smith, L. Bassani, A. J. Bird, L. Bouchet, M. Cadolle-Bel, F. Capitanio, G. De Cesare, M. Falanga
and 17 more authors
F. Frontera, P. Goldoni, A. Goldwurm, J. Huovelin, E. Kuulkers, N. Lund, G. Malaguti, A. Malizia, I. F. Mirabel, L. Natalucci, A. Paizis, J. Paul, V. Reglero, P. Ubertini, O. Vilhu, C. Winkler, A. Zdziarski
/ Abstract
The brightest persistent Galactic black hole candidate close to the Galactic Centre, 1E 1740.7-2942, has long been observed with INTEGRAL. In this paper, we report on the long-term hard X-ray monitoring obtained during the first year of observations as part of the Galactic Centre Deep Exposure. We discuss the temporal and spectral behaviours in different energy bands up to 250 keV, as well as the hardness-flux correlations.