53 citations · 56 across the 5 of their papers we have counts for
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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…
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…
First high energy observations of Narrow Line Seyfert 1s with INTEGRAL/IBIS
A. Malizia, L. Bassani, A. J. Bird +8
Narrow Line Seyfert 1 galaxies (NLS1) are very interesting objects which display peculiar properties when compared to their broad line analogues (BLS1). Although well studied in ma…
Bulk Compton motion in the luminous quasar 4C04.42?
A. De Rosa, L. Bassani, P. Ubertini +2
We present the broadband analysis of the powerful quasar 4C04.42 (z=0.965) observed by XMM and INTEGRAL. The 0.2--200 keV spectrum is well reproduced with a hard power-law componen…
The broad-band XMM-Newton and INTEGRAL spectra of bright type 1 Seyfert galaxies
F. Panessa, L. Bassani, A. De Rosa +7
The 0.5-150 keV broad-band spectra of a sample of nine bright type 1 Seyfert galaxies are analyzed here. These sources have been discovered/detected by INTEGRAL and subsequently ob…
Unveiling the nature of INTEGRAL objects through optical spectroscopy. VI. A multi-observatory identification campaign
N. Masetti, E. Mason, L. Morelli +18
Using 8 telescopes in the northern and southern hemispheres, plus archival data from two on-line sky surveys, we performed a systematic optical spectroscopic study of 39 putative c…