LogoLogo
  • Bio
  • Fyzika
  • V médiích
  • Fotografie
  • Výstavy
  • Kontakt

    On mutual relation of kHz QPOs

    Zdeněk Stuchlík · Prosinec 01, 2007 · Fyzika · 0 comments
    0

    Publication date: Dec 2007

    Abstract:
    We further investigate the issue of clustering of kHz QPO frequency
    ratios in neutron star low mass X-ray binaries. In this note we report
    on the recent analysis of occurrences and properties of kHz QPOs in the
    source 4U 1636-53. Assuming that kHz QPOs occur in pairs whose
    frequencies are linearly correlated, we find a prominent frequency (or a
    narrow frequency region) that separates upper and lower QPO
    observations. The two QPO modes are then simultaneously detected mainly
    in the vicinity of this transition points. We show that this can be
    understood in terms of correlations of QPO properties with frequency,
    such as quality factor and rms amplitude. We find that rms amplitudes
    and quality factors of both QPOs nearly equal at the transition point.
    In addition, the QPO frequencies are nearly commensurable there. We
    investigate also five other atoll sources obtaining similar results.

    Authors:
    Török, Gabriel; Bursa, Michal; Horák, Jiří; Stuchlík, Zdeněk; Bakala, Pavel;

    https://ui.adsabs.harvard.edu/abs/2007ragt.meet..501T

      Facebook   Pinterest   Twitter   Google+

    Leave a Comment! Zrušit odpověď na komentář

    You must be logged in to post a comment.
    Archivy
    Copyright © 2016 Zdeněk Stuchlík