Oscillations of radiation pressure supported tori near black holes

摘要: We study the dynamics of radiation pressure supported tori around Schwarzschild black holes, focusing on their oscillatory response to an external perturbation. Using KORAL, a general relativistic hydrodynamics code capable modeling all radiative regimes from optically thick thin, we monitor sample models at different initial temperatures and opacities, evolving them in two spatial dimensions for $\sim 165$ orbital periods. The with high opacity is very similar that purely models, it characterized by regular oscillations which are visible also light curves. As decreased, quickly violently migrate towards gas-pressure dominated regime, collapsing equatorial plane. When spectra $L_2$ norm mass density considered, frequency inertial-acoustic modes detected (with fundamental mode $68 M_{\rm BH}^{-1}\,\rm Hz$), close analogy phenomenology hydrodynamic models. An additional oscillation, $129 Hz$, found, can be unambiguously attributed radiation. extracted curves typically more noisy, indicating real observation such would not easily detected.