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The extragalactic nature of the serendipitous BeppoSAX source 2MASX J14585116-1652223
N. Masetti, E. Mason, L. Bassani +4
As a follow-up of the X-ray serendipitous detection of the source 2MASX J14585116-1652223, medium-resolution optical spectroscopic observations collected at the 1.5-metre "Cassini"…
INTEGRAL observations of AGN in the Galactic Plane
S. Soldi, V. Beckmann, L. Bassani +7
We present results on approximately one year of INTEGRAL observations of six AGN detected during the regular scans of the Galactic Plane. The sample is composed by five Seyfert 2 o…
BeppoSAX/PDS serendipitous detections at high galactic latitudes
R. Landi, A. Malizia, L. Bassani
At a flux limit of ~10^(-11) erg/cm2/s in the 20-100 keV band, the PDS instrument on-board BeppoSAX offers the opportunity to study the extragalactic sky with an unprecedented sens…
The puzzling case of GRB 990123: multiwavelength afterglow study
E. Maiorano, N. Masetti, E. Palazzi +18
We report on the BeppoSAX data analysis of the afterglow of Gamma-Ray Burst (GRB) 990123, one of the brightest GRBs detected by BeppoSAX. Mainly due to its exceptional brightness,…
Nonthermal hard X-ray excess in the cluster Abell 2256 from two epoch observations
Roberto Fusco-Femiano, Raffaella Landi, Mauro Orlandini
After confirmation of the presence of a nonthermal hard X-ray excess with respect to the thermal emission in the Coma cluster from two independent observations, obtained using the…