A turbulent model of time variability in X-ray binary pulsars

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

12

Magnetohydrodynamic Turbulence, Pulsars, Turbulence Models, X Ray Binaries, Accretion Disks, Neutron Stars, Power Spectra

Scientific paper

It is found that the observed power spectral density of the aperiodic time variability of the X-ray pulsar can be approximated by a power-law spectrum which changes its slope at the pulsation frequency (pulsar rotation frequency). The indices of the observed spectra are, respectively, 1.4-2.0 above the pulsation frequency and 0-1.0 below the pulsation frequency. By studying the density fluctuation spectra with inverse cascades in magnetohydrodynamic turbulence, we find that the observed X-ray spectra can be interpreted as the density fluctuations in the accreting plasmas. It is shown that the structure of either disk-fed or wind-fed pulsars can be determined by comparing the observed X-ray spectra with the theoretical density fluctuation spectra of two- or three-dimensional magnetohydrodynamic turbulence, respectively.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

A turbulent model of time variability in X-ray binary pulsars 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 A turbulent model of time variability in X-ray binary pulsars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A turbulent model of time variability in X-ray binary pulsars will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1069594

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.