Dependence of the Kilohertz QPO Frequency on the X-ray Variabilities at Lower Frequencies in Sco X-1

Details Dependence of the Kilohertz QPO Frequency on the X-ray Variabilities at Lower Frequencies in Sco X-1 Dependence of the Kilohertz QPO Frequency on the X-ray Variabilities at Lower Frequencies in Sco X-1

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000head....5.4406y&link_type=abstract

American Astronomical Society, HEAD Meeting #5, #44.06; Bulletin of the American Astronomical Society, Vol. 32, p.1652

Astronomy and Astrophysics

Astronomy

Scientific paper

We present here the results obtained from the analysis of the RXTE observations of Sco X-1. The correlation between the kilohertz QPO Frequency and the phase of the X-ray variability at lower frequencies (i.e. Normal Branch Oscillations (NBO) and Low-Frequency Noise (LFN)) have been studied. We have found that the results are consistent with the correlation between the kHz QPO frequency and the X-ray flux estabilished on longer time scales. These provide clues to the origin of the variability modes and kHz QPOs.

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