7 papers
Low and high frequency variability as a function of spectral properties in the bright X-ray binary GX 5-1
P. G. Jonker, M. van der Klis, J. Homan +4
We report on a detailed analysis of data obtained over nearly four years with the Rossi X-ray Timing Explorer of the Z source GX 5-1. From a spectral analysis using a hardness-inte…
X-ray bursts at extreme mass accretion rates from GX 17+2
E. Kuulkers, J. Homan, M. van der Klis +2
(abridged version) We report on ten type I X-ray bursts from GX 17+2 in data obtained with the RXTE/PCA in 1996--2000. Three bursts were short in duration (~10 s), whereas the othe…
Detailed Analysis of the Pulsations During and After Bursts from the Bursting Pulsar (GRO J1744-28)
Peter M. Woods, Chryssa Kouveliotou, Jan van Paradijs +5
The hard X-ray bursts observed during both major outbursts of the Bursting Pulsar (GRO J1744-28) show pulsations near the neutron star spin frequency with an enhanced amplitude rel…
A Search for Non-triggered Gamma Ray Bursts in the BATSE Data Base
J. M. Kommers, W. H. G. Lewin, C. Kouveliotou +4
We describe a search of archival data from the Burst and Transient Source Experiment (BATSE). The purpose of the search is to find astronomically interesting transients that did no…
Discovery of microsecond time lags in kilohertz QPO
Brian A. Vaughan, Michiel van der Klis, Mariano Mendez +7
Using the Rossi X-ray Timing Explorer we have measured 27 microsecond time delays in 830 Hz quasi-periodic oscillations (QPO) between 4-6 keV and 11-17 keV in 4U 1608-52, with high…
GX 17+2: X-ray spectral and timing behaviour of a bursting Z source
E. Kuulkers, M. van der Klis, T. Oosterbroek +2
We investigated the properties of the Z pattern of the low-mass X-ray binary GX 17+2 in the X-ray colour-colour diagrams (CDs) and hardness-intensity diagrams (HIDs), and of the po…