Probing the X-ray Variability of X-ray Binaries

Details Probing the X-ray Variability of X-ray Binaries Probing the X-ray Variability of X-ray Binaries

2003-04-08

arxiv.org/abs/astro-ph/0304135v1

Astronomy and Astrophysics

Astrophysics

4 pages including 1 figure, To appear in "High Energy Processes and Phenomena in Astrophysics, IAU Symposium 214", X. Li, Z. W

Scientific paper

Kilohertz quasi-periodic oscillations (kHz QPOs) has been regarded as representing the Keplerian frequency at the inner disk edge in the neutron star X-ray binaries. The so-called ``parallel tracks'' on the plot of the kHz QPO frequency vs. X-ray flux in neutron star X-ray binaries, on the other hand, show the correlation between the kHz QPO frequency and the X-ray flux on time scales from hours to days. This is suspected as caused by the variations of the mass accretion rate through the accretion disk surrounding the neutron star. We show here that by comparing the correlation between the kHz QPO frequency and the X-ray count rate on a certain QPO time scale observed approximately simultaneous in the Fourier power spectra of the X-ray light curve, we have found evidences that the X-ray flux of millihertz QPOs in neutron star X-ray binaries is generated inside the inner disk edge if adopting that the kilohertz QPO frequency is an orbital frequency at the inner disk edge. This approach could be applied to other variability components in X-ray binaries.

Affiliated with

Also associated with

No associations

Rating

Probing the X-ray Variability of X-ray Binaries does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Probing the X-ray Variability of X-ray Binaries, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing the X-ray Variability of X-ray Binaries will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-603569