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Title:
Difficulties with the QPOs resonance model
Authors:
Rebusco, Paola
Affiliation:
AA(Kavli Institute for Astrophysics and Space Research, MIT, Cambridge, MA 02139, USASupported by the Pappalardo Postdoctoral Fellowship in Physics at MIT.)
Publication:
New Astronomy Reviews, Volume 51, Issue 10-12, p. 855-859. (NewAR Homepage)
Publication Date:
05/2008
Origin:
ELSEVIER
DOI:
10.1016/j.newar.2008.03.015
Bibliographic Code:
2008NewAR..51..855R

Abstract

High frequency quasi-periodic oscillations (HFQPOs) have been detected in microquasars and neutron star systems. The resonance model suggested by Kluźniak and Abramowicz (2000, 2001) explains twin QPOs as two weakly coupled nonlinear resonant epicyclic modes in the accretion disk. Although this model successfully explains many features of the observed QPOs, it still faces difficulties and shortcomings. Here we summarize the aspects of the theory that remain a puzzle and we briefly discuss likely developments.
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