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.;