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Title:
The Twin Peak QPOs in Neutron Star and Black Hole Sources: What is explained, and What is not
Authors:
Abramowicz, M.; Kluzniak, W.; Bursa, M.; Horák, J.; Rebusco, P.; Török, G.
Affiliation:
AA(Department of Physics, Göteborg University, Sweden.)
Publication:
Triggering Relativistic Jets (Eds. William H. Lee & Enrico Ramírez-Ruiz) Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias) Vol. 27, pp. 8-17 (2007) (http://www.astroscu.unam.mx/~rmaa/) (RMxAC Homepage)
Publication Date:
03/2007
Origin:
RMXAA
Keywords:
accretion, accretion disks, black hole physics, hydrodynamics, stars: neutron
Bibliographic Code:
2007RMxAC..27....8A

Abstract

The resonance model proposed in 2000 by Kluzniak and Abra-mo-wicz, explains the twin peak, high frequency, quasi periodic oscillations (HF QPOs) observed in the X-ray flux from black hole and neutron stars, as a non-linear resonance in modes of oscillations of accretion flows in strong gravity. While several important physical questions remain unanswered, recent observations of HF QPOs provide direct evidence of non-linear resonances. This article gives an up to date (May 2006) review of what has been explained, and what has not been explained, by the resonance model.
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