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Detection of 33.8 ms X-ray pulsations in SAX J0635+0533
G. Cusumano, M. C. Maccarone, L. Nicastro +2
We revisited the BeppoSAX observation of SAX J0635+0533, suggested as a possible counterpart to the gamma-ray source 2EG J0635+0521. We have discovered a 33.8 ms pulsation from the…
Discovery of a faint 437 s X-ray pulsar 1SAX J1452.8-5949
T. Oosterbroek, M. Orlandini, A. N. Parmar +6
A new pulsar, 1SAX J1452.8-5949, was discovered during a BeppoSAX galactic plane survey on 1999 July 20 at R.A.=14h 52m 49s, Dec=-59 49' 18'' (J2000) with a 90% confidence uncertai…
BeppoSAX Observations of GRB980425: Detection of the Prompt Event and Monitoring of the Error Box
E. Pian, L. Amati, L. A. Antonelli +25
We present BeppoSAX follow-up observations of GRB980425 obtained with the Narrow Field Instruments (NFI) in April, May, and November 1998. The first NFI observation has detected wi…
Iron line signatures in X-ray afterglows of GRB by BeppoSAX
L. Piro, E. Costa, M. Feroci +12
We report the possible detection (99.3% of statistical significance) of redshifted Fe iron line emission in the X-ray afterglow of Gamma-ray burst GRB970508 observed by BeppoSAX. I…
The X-ray afterglow of GRB980519
L. Nicastro, L. Amati, L. A. Antonelli +7
Over a total of 20 gamma-ray bursts localized with arcmin accuracies, GRB980519 represents the 13th detected by the BeppoSAX Wide Field Cameras. An X-ray TOO observation performed…
BeppoSAX Detection and Follow-up of GRB980425
E. Pian, L. Amati, L. A. Antonelli +25
We present BeppoSAX GRBM and WFC light curves of GRB980425 and NFI follow-up data taken in 1998 April, May, and November. The first NFI observation has detected within the 8' radiu…
The X-ray afterglow of the Gamma-ray burst of May 8, 1997: spectral variability and possible evidence of an iron line
L. Piro, E. Costa, M. Feroci +11
We report the possible detection (99.3% of statistical significance) of redshifted Fe iron line emission in the X-ray afterglow of Gamma-ray burst GRB970508 observed by BeppoSAX. I…