4 papers
A broadband X-ray view of NGC4945
M. Guainazzi, G. Matt, W. N. Brandt +3
We present the results of a BeppoSAX observation of the nearby spiral galaxy NGC4945 in the 0.1-200 keV energy band. The nuclear X-ray emission emerges above ~7 keV, through an abs…
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…
Gamma-Ray Burst 980329 and its X-Ray Afterglow
J. J. M. in 't Zand, L. Amati, L. A. Antonelli +16
GRB 980329 is the brightest gamma-ray burst detected so far with the Wide Field Cameras aboard BeppoSAX, both in gamma-rays and X-rays. With respect to its fluence (2.6 X 10**-5 er…
The X-ray spectrum and variability of the Seyfert 2 Galaxy NGC7172
M. Guainazzi, G. Matt, L. A. Antonelli +3
We present evidence of flux variability, on both short (hours) and long (months) time scales of the Seyfert 2 galaxy NGC 7172. These results are based on the ASCA observation of NG…