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The AGN nature of three INTEGRAL sources: IGR J18249-3243, IGR J19443+2117 and IGR J22292+6647
R. Landi, J. B. Stephen, N. Masetti +6
The third INTEGRAL/IBIS survey has revealed several new hard X-ray sources, which are still unclassified. To identify these sources, we need to find their counterparts at other wav…
Unveiling the nature of INTEGRAL objects through optical spectroscopy. VII. Identification of 20 Galactic and extragalactic hard X-ray sources
N. Masetti, P. Parisi, E. Palazzi +17
Within the framework of our program of assessment of the nature of unidentified or poorly known INTEGRAL sources, we present here spectroscopy of optical objects, selected through…
Discovery of a 30 day period in the supergiant fast X-ray transient SAX J1818.6-1703
A. J. Bird, A. Bazzano, A. B. Hill +4
SAX J1818.6-1703 has been characterised as a Supergiant Fast X-ray Transient system on the basis of several INTEGRAL/IBIS detections since the original BeppoSAX Wide Field Camera d…
The INTEGRAL long monitoring of persistent Ultra Compact X-ray Bursters
M. Fiocchi, A. Bazzano, P. Ubertini +3
The combination of compact objects, short period variability and peculiar chemical composition of the Ultra Compact X-ray Binaries make up a very interesting laboratory to study ac…
INTEGRAL/IBIS and Swift/XRT observations of hard cataclysmic variables
R. Landi, L. Bassani, A. J. Dean +5
The analysis of the third INTEGRAL/IBIS survey has revealed several new cataclysmic variables, most of which turned out to be intermediate polars, thus confirming that these object…
A broad-band spectral analysis of eight radio loud type 1 AGN selected in the hard X-ray band
M. Molina, L. Bassani, A. Malizia +6
Starting from a complete sample of type I AGN observed by INTEGRAL in the 20-40 keV band, we have selected a set of 8 AGN which can be classified as radio loud objects according to…