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BeppoSAX observations of an orbital cycle of the X-ray binary pulsar GX301-2
M. Orlandini, D. Dal Fiume, F. Frontera +4
We present preliminary results on our campaign of observations of the X-ray binary pulsar GX301-2. BeppoSAX observed this source six times in January/February 1998: at the periastr…
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 1998 outburst of the X-ray transient 4U 1630-47 observed with BeppoSAX
T. Oosterbroek, A. N. Parmar, E. Kuulkers +4
We report results of five pointed BeppoSAX observations of the black hole candidate 4U 1630-47 during part of its 1998 outburst when the 2-10 keV source luminosity decreased from 2…
BeppoSAX observation of 4U1626-67: Discovery of an absorption cyclotron resonance feature
M. Orlandini, D. Dal Fiume, F. Frontera +6
We report on an observation of the low-mass X-ray binary 4U1626-67 performed during the BeppoSAX Science Verification Phase. An absorption feature at ~37 keV, attributable to elect…
ROSAT archival observations of 1SAX J0054.9-7226 = 2E 0053.2-7242, a newly discovered X-ray pulsar in the SMC
G. L. Israel, S. Campana, G. Cusumano +4
We analysed 13 archival ROSAT PSPC and HRI observations which included the position of a newly discovered 59s X-ray pulsar in the Small Magellanic Cloud, 1SAX J0054.9-7226 = 2E 005…
The broad band spectral properties of galactic X-ray binary pulsars
D. Dal Fiume, M. Orlandini, F. Frontera +6
BeppoSAX observed several galactic binary X-ray pulsars during the Science Verification Phase and in the first year of the regular program. The complex emission spectra of these so…