SWIFT/XRT follow-up observations of INTEGRAL AGNs
R. Landi, A. Malizia, L. Bassani, N. Masetti, J. B. Stephen, F. Gianotti, F. Schiavone, A. Bazzano, P. Ubertini, A. J. Bird, A. J. Dean, R. Walter
Abstract
In five years of operation, data from INTEGRAL has been used to discover a large number of gamma-ray sources, a substantial fraction of which have turned out to be active galactic nuclei (AGN). Recently Bassani et al. (2006) have presented a sample of around 60 AGNs of which some still lack optical identification or information in the X-ray band. In this work we present X-ray data for 8 objects acquired with the XRT telescope on-board Swift satellite. The XRT positioning has allowed us to identify the optical counterparts and to classify their types through follow-up measurements. Analysis of these data has also provided information on their spectra below 10 keV.
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