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    Non-linear resonance model of hi-frequency quasiperiodic oscillations (QPO) in X-ray sources: theory vs. observation

    Zdeněk Stuchlík · Srpen 01, 2007 · Fyzika · 0 comments
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    Publication date: Aug 2007

    Abstract:
    There is an impressive agreement between theoretical prediction of the
    high frequency twin peak QPO resonance model and the black-hole as well
    as neutron-star observational data. The model explains QPOs as two modes
    of accretion disk oscillations that are weakly coupled, non linear and
    resonant. It predicts that there should be 1/ mass scalling of
    frequencies, that the two frequencies ν_high, ν_low should be
    nearly linearly correlated for one source, ν_high = A ν_low + B,
    that the A, B coefficients should be anti correlated in a sample of
    neutron star sources, and that the difference of amplitudes in the two
    modes should vanish close to the resonance. All these predictions are
    confirmed by observations. No any other QPO model is able to explain all
    these observations.

    Authors:
    Török, G.; Abramowicz, M. A.; Stuchlik, Z.; Sramkova, E.;

    http://adsabs.harvard.edu/abs/2007IAUS..240..462T

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