Kilohertz QPO and Atoll Source States in 4 U 0614 + 09

@inproceedings{Mendez1997KilohertzQA,
  title={Kilohertz QPO and Atoll Source States in 4 U 0614 + 09},
  author={Mariano Mendez and Michiel van der Klis and J. A. van Paradijs and Walter H. G. Lewin and Frederick K. Lamb and Brian A. Vaughan and Erik Kuulkers and Dimitrios Psaltis},
  year={1997}
}
We report three RXTE/PCA observations of the low-mass X-ray binary 4U 0614+09. They show strong (∼30% rms) band-limited noise with a cut-off frequency varying between 0.7 and 15 Hz in correlation with the X-ray flux, fx. We observe two nonsimultaneous 11–15% (rms) kHz peaks near 728 and 629 Hz in the power spectra of two of our observations when fx ∼10 erg… CONTINUE READING