4 papers
The transient X-ray pulsar 4U 0115+63 from quiescence to outburst through the centrifugal transition
S. Campana, F. Gastaldello, L. Stella +5
We report on a BeppoSAX observation of the transient X-ray pulsar 4U 0115+63 close to periastron. This led to the discovery of a dramatic luminosity variation from ~2x10^34 erg/s t…
Broad-band X-ray spectra of the persistent black hole candidates LMC X-1 and LMC X-3
F. Haardt, M. R. Galli, A. Treves +7
We report on observations of the two persistent black hole candidates LMC X-3 and LMCX-1 performed with \BS in October 1997. The flux of LMC X-1 was possibly measured up to 60 keV,…
BeppoSAX observations of the black hole candidates LMC X-1 and LMC X-3
A. Treves, M. R. Galli, F. Haardt +6
We describe BeppoSAX observations of the black hole candidates LMC X--1 and LMC X--3 performed in Oct. 1997. Both sources can be modelled by a multicolor accretion disk spectrum, w…
Aquila X-1 from outburst to quiescence: the onset of the propeller effect and signs of a turned-on rotation-powered pulsar
S. Campana, L. Stella, S. Mereghetti +5
We report on the March-April 1997 BeppoSAX observations of Aql X-1, the first to monitor the evolution of the spectral and time variability properties of a neutron star soft X-ray…