Publication date: Jan 2012
Abstract:
Using known frequencies of the twin peak quasiperiodic oscillations
(QPOs) and the known mass of the central black hole, the black hole
dimensionless spin a can be determined, assuming a concrete version of
the orbital resonance model. However, because of large range of
observationally limited values of the black hole mass, its spin can be
estimated with a low precision only. Higher precision of the black hole
dimensionless spin measurement is possible in the framework of multi-
resonance model of QPOs inspired by complex high-frequency QPO patterns
observed in some black hole and neutron star systems.
Authors:
Stuchlík, Zdeněk; Kotrlová, Andrea; Török, Gabriel; Adámek, Karel;