Strong Aperiodic X-ray Variability and Quasi-Periodic Oscillation in X-ray Nova XTE J 1550-564

@inproceedings{Cui1998StrongAX,
  title={Strong Aperiodic X-ray Variability and Quasi-Periodic Oscillation in X-ray Nova XTE J 1550-564},
  author={Wei Cui and Shuang Nan Zhang and Wan Chen and Edward H. Morgan},
  year={1998}
}
We report the discovery of strong aperiodic X-ray variability and quasi-periodic oscillation (QPO) in the Xray light curves of a new X-ray nova, XTE J15502564, and the evolution of the observed temporal properties during the rise of the recent X-ray outburst. The power spectral analysis of the first observation reveals strong aperiodic X-ray variability of the source (∼28%) as well as the presence of a QPO at ∼82 mHz with fractional rms amplitude ∼14% over the 2–60 keV energy range. Also… CONTINUE READING
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