4 papers · 1 filter
The extraordinary X-ray spectrum of XTE J0421+560
A. Orr, A. N. Parmar, M. Orlandini +5
We report results of two BeppoSAX observations of the transient X-ray source XTE J0421+560 during the outburst that started in March 1998. The source exhibits radio jets and coinci…
The absorption properties of gamma-ray burst afterglows measured by BeppoSAX
Alan Owens, M. Guainazzi, T. Oosterbroek +14
We present an analysis of the X-ray absorption properties of 6 gamma-ray burst (GRB) afterglows measured with BeppoSAX. Between 8 hrs and 20 hrs after the initial GRB trigger, indi…
Multifrequency observations of XTE J0421+560/CI Cam in outburst
F. Frontera, M. Orlandini, L. Amati +9
We report on two X-ray observations of the transient source XTE J0421+560 performed by BeppoSAX, and on a series of observations performed by the 0.7m Teramo-Normale Telescope. Out…
Quasi-simultaneous observations of 3C 273 by BeppoSAX and ASCA
Astrid Orr, T. Yaqoob, A. N. Parmar +3
We report the results of quasi-simultaneous observations of the bright quasar 3C 273 using the BeppoSAX Low-Energy Concentrator Spectrometer (LECS) and the ASCA Solid-State Imaging…