Publication date: Aug 2007
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.
Török, G.; Abramowicz, M. A.; Stuchlik, Z.; Sramkova, E.;