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Millisecond Oscillations in X-ray Binaries
The end of at least one cable is connected to a float and the other end exerts a tractive effort on one or a number of collecting vehicles which land on the bottom at predetermined points withExpand
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A radio-emitting outflow in the quiescent state of A0620−00: implications for modelling low-luminosity black hole binaries
Deep observations with the Very Large Array of A0620-00, performed in 2005 August, resulted in the first detection of radio emission from a black hole binary at X-ray luminosities as low as 10-8.5Expand
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The Discovery of a State-Dependent Hard Tail in the X-Ray Spectrum of the Luminous Z Source GX 17+2
We report results of a BeppoSAX (0.1-200 keV) observation of the Z-type low-mass X-ray binary GX 17+2. The source was on the so-called horizontal and normal branches. Energy spectra were selectedExpand
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Tracing the power-law component in the energy spectrum of black hole candidates as a function of the QPO frequency
We investigated the relation between the centroid frequency of the quasi-periodic oscillation observed in the power density spectra of a sample of galactic black-hole candidates with the power-lawExpand
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Hard X‐ray states and radio emission in GRS 1915+105
We compare simultaneous Ryle Telescope radio and Rossi X-Ray Timing Explorer X-ray observations of the galactic microquasar GRS 1915+105, using the classification of the X-ray behaviour in terms ofExpand
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Optical spectra of the carbon-oxygen accretion discs in the ultra-compact X-ray binaries 4U 0614+09, 4U 1543-624 and 2S 0918-549
We present optical spectra in the range 4600‐8600 ˚ A for three low-mass X-ray binaries which have been suggested to belong to the class of ultra-compact X-ray binaries based on their X-ray spectra.Expand
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On the spectral evolution of Cygnus X{2 along its color-color diagram
We report on the results of a broad band (0.1{200 keV) spectral study of Cyg X{2 using two BeppoSAX observations taken in 1996 and 1997, respectively, for a total eective on-source time of100 ks. TheExpand
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A four-year XMM-Newton/Chandra monitoring campaign of the Galactic centre: analysing the X-ray transients
We report on the results of a four-year long X-ray monitoring campaign of the central 1.2 square degrees of our Galaxy, performed with Chandra and XMM-Newton between 2005 and 2008. Our study focusesExpand
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A DECADE OF TIMING AN ACCRETION-POWERED MILLISECOND PULSAR: THE CONTINUING SPIN DOWN AND ORBITAL EVOLUTION OF SAX J1808.4-3658
The Rossi X-ray Timing Explorer has observed five outbursts from the transient 2.5 ms accretion-powered pulsar SAX J1808.4-3658 during 1998-2008. We present a pulse timing study of the most recentExpand
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SAX J1808.4−3658: high-resolution spectroscopy and decrease of pulsed fraction at low energies
XMM-Newton observed the accreting millisecond pulsar SAX J1808.4−3658 during its 2008 outburst. We present timing and spectral analyses of this observation, in particular the first pulse profileExpand
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