Prague Synergy 2013: Abstract

Olindo ZanottiLuciano Rezzolla;Shin'ichirou Yoshida;Pedro Montero; Thomas Maccarone;Jose' Antonio Font;

High Frequency Quasi Periodic Oscillations from accretion discs around X-ray binaries

I will review the properties of oscillating thick tori, which are at the basis of a model proposed ten years ago for the explanation of High Frequency QPOs in X-ray binaries. Axisymmetric p-mode oscillations can be studied either using a linear perturbative approach or through non-linear general relativistic hydrodynamics simulations. I will take into account recent discoveries to illustrate the main aspects of the model.