1.5k citations · 15.4k across the 209 of their papers we have counts for
14 papers · 1 filter
Discovery of a Transient Absorption Edge in the X-ray Spectrum of GRB 990705
L. Amati, F. Frontera, M. Vietri +18
We report the discovery of a transient equivalent hydrogen column density with an absorption edge at ~3.8 kiloelectron volts in the spectrum of the prompt x-ray emission of gamma-r…
BeppoSAX confirmation of beamed afterglow emission from GRB990510
Elena Pian, Paolo Soffitta, Alessandro Alessi +8
We compare the prompt X-ray (2-10 keV) emission of GRB990510 measured by the BeppoSAX Wide Field Cameras (WFC) during the burst to the X-ray afterglow detected by the BeppoSAX Narr…
VLT identification of the optical afterglow of the gamma-ray burst GRB 000131 at z=4.50
M. I. Andersen, J. Hjorth, H. Pedersen +16
We report the discovery of the gamma-ray burst GRB 000131 and its optical afterglow. The optical identification was made with the VLT 84 hours after the burst following a BATSE det…
Broad band spectrum of Cygnus X-1 in two spectral states with BeppoSAX
F. Frontera, E. Palazzi, A. A. Zdziarski +13
We report on the 0.5--200 keV spectral properties of Cyg X-1 observed at different epochs with the Narrow Field Instruments of the BeppoSAX satellite. The source was in its soft st…
Multiband optical polarimetry of the BL Lac object PKS 2155--304. Intranight and long term variability
Leonardo Tommasi, Ruben Diaz, Eliana Palazzi +4
The polarized and total flux of the BL Lac object PKS 2155-304 were monitored intensively and simultaneously in the optical UBVRI bands with the Turin photopolarimeter at the CASLE…
Hard X-rays from Type II bursts of the Rapid Burster and its transition toward quiescence
N. Masetti, F. Frontera, L. Stella +10
We report on 4 BeppoSAX Target Of Opportunity observations of MXB 1730-335, the Rapid Burster (RB), made during the 1998 February-March outburst. In the first observation, approxim…