The Fourth IBIS/ISGRI Soft Gamma-ray Survey Catalog
Götz, D.; Hill, A. B.; Rodriguez, J.; Walter, R.; Capitanio, F.; Bird, A. J.; Fiocchi, M.; Scaringi, S.; Ubertini, P.; McBride, V. A.; Malizia, A.; Bassani, L.; Bazzano, A.; Terrier, R.; Dean, A. J.; Stephen, J. B.; Renaud, M.; Lebrun, F.; Sguera, V.; Mattana, F.; Winkler, C.; Belanger, G.
United Kingdom, Italy, France, Spain, Switzerland, Netherlands
Abstract
In this paper, we report on the fourth soft gamma-ray source catalog obtained with the IBIS gamma-ray imager on board the INTEGRAL satellite. The scientific data set is based on more than 70 Ms of high-quality observations performed during the first five and a half years of the Core Program and public observations. Compared to previous IBIS surveys, this catalog includes a substantially increased coverage of extragalactic fields, and comprises more than 700 high-energy sources detected in the energy range 17-100 keV, including both transients and faint persistent objects that can only be revealed with longer exposure times. A comparison is provided with the latest Swift/BAT survey results.
Based on observations with INTEGRAL, an ESA project with instruments and Science Data Centre funded by ESA member states (especially the PI countries: Denmark, France, Germany, Italy, Switzerland, Spain), Czech Republic, and Poland, and with the participation of Russia and the USA.