4 papers
An anomalous low-state from the globular cluster X-ray source X1732-304 (Terzan 1)
M. Guainazzi, A. N. Parmar, T. Oosterbroek
During a BeppoSAX observation of the X-ray burst source X1732-304 located in the globular cluster Terzan 1 in 1999 April, the source was detected in an anomalously low-state with a…
The complex 0.1-200 keV spectrum of the Seyfert 1 Galaxy NGC4593
M. Guainazzi, G. C. Perola, G. Matt +5
We report on the first observation of the Seyfert 1 galaxy NGC4593 in the 0.1-200 keV band, performed with the BeppoSAX observatory. Its spectral components are for the first time…
The Comptonized X-ray source X1724-308 in the globular cluster Terzan 2
M. Guainazzi, A. N. Parmar, A. Segreto +3
We report on the BeppoSAX observation of the X-ray source X1724-308 in the globular cluster Terzan 2. The broadband spectrum can be described as the superposition of a power-law wi…
High resolution imaging of the X-ray afterglow of GRB970228 with ROSAT
F. Frontera, J. Greiner, L. A. Antonelli +6
We report results of a ROSAT High-Resolution Imager (HRI) observation of the X-ray error box given by the BeppoSAX Wide Field Camera for the gamma-ray burst that occurred on 1997 F…