207 citations · 1.9k across the 69 of their papers we have counts for
9 papers · 2 filters
An XMM-Newton Study of the Hard X-ray Sky
E. Piconcelli, M. Cappi, L. Bassani +2
We report on the spectral properties of a sample of 90 hard X-ray selected serendipitous sources detected in 12 XMM observations with 1<F(2-10)<80 10^(-14) erg/cm2/s. Approximately…
IBIS preliminary results on Cygnus X-1 spectral and temporal characteristics
A. Bazzano, A. J. Bird, F. Capitanio +11
We report preliminary results of a broadband spectral and temporal study of the black-hole binary Cyg X-1 performed with the IBIS telescope. Cyg X-1 was the first pointed celestial…
3EG J2027+3429 another Blazar behind the Galactic Plane
V. Sguera, A. Malizia, L. Bassani +2
We report on the association of an X-ray source (WGA J2025.1+3342), serendipitously found with BeppoSAX in two separate observations, with the unidentified EGRET source 3EG J2027+3…
In-flight calibrations of IBIS/PICsIT
G. Malaguti, A. Bazzano, A. J. Bird +6
PICsIT (Pixellated Imaging CaeSium Iodide Telescope) is the high energy detector of the IBIS telescope on-board the INTEGRAL satellite. It consists of 4096 independent detection un…
GRB021125: the first GRB imaged by INTEGRAL
G. Malaguti, A. Bazzano, V. Beckmann +12
In the late afternoon of November 25, 2002 a gamma-ray burst (GRB) was detected in the partially coded field of view (about 7.3 deg from the centre) of the imager IBIS on board the…
Yet another galaxy identification for an ultraluminous X-ray source
N. Masetti, L. Foschini, L. C. Ho +4
We report on the identification of the optical and infrared counterparts of the ultraluminous X-ray source (ULX) XMMU J121214.5+131248 (NGC4168-ULX1). The optical spectrum yields a…
BeppoSAX average spectra of Seyfert galaxies
A. Malizia, L. Bassani, J. B. Stephen +3
We have studied the average 3-200 keV spectra of Seyfert galaxies of type 1 and 2, using data obtained with BeppoSAX. The average Seyfert 1 spectrum is well-fitted by a power law c…
XMM-Newton Survey of a Distance-limited Sample of Seyfert Galaxies: Preliminary Spectral Results
M. Cappi, G. Di Cocco, F. Panessa +19
An unbiased estimate of the average intrinsic X-ray properties and column density distribution of Seyfert galaxies in the local Universe is crucial to validate unified models of ac…
Search for relativistic beaming in ultraluminous X-ray sources
L. Foschini, G. Malaguti, G. Di Cocco +3
The nature of the ultraluminous X-ray sources (ULX) is still to be understood. Several hypotheses have been suggested to explain the high X-ray luminosity: stellar mass black holes…