2008/10/09 by Bárbara T. Ferreira, Barbara T. Ferreira, Gordon I. Ogilvie · 28 citations
Engineering · Physics and Astronomy · #Accretion (finance) #Accretion disc #Astrophysical Phenomena and Observations #Astrophysics #Black hole (networking) #Classical mechanics #Eccentricity (behavior) #Excitation #Image warping #Inertial frame of reference #Mechanics and Biomechanics Studies #Physics #Pulsars and Gravitational Waves Research #astro-ph
paper · pdf · doi:10.1111/j.1365-2966.2008.14070.x
published in Monthly Notices of the Royal Astronomical Society 392(1), 428-438 (Oxford University Press) · 12 pages, 5 figures, accepted for publication in MNRAS
arxiv created 2008/10/09 · openalex publication_date 2008/12/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We consider the inward propagation of warping and eccentric disturbances in discs around black holes under a wide variety of conditions. In our calculations, we use secular theories of warped and eccentric discs and assume the deformations to be stationary and propagating in a disc model similar to regions (a) and (b) of Shakura & Sunyaev discs. We find that the propagation of deformations to the innermost regions of the disc is facilitated for low viscous damping and high accretion rate. We relate our results to the possible excitation of trapped inertial modes, and to the observations of high-frequency quasi-periodic oscillations (QPOs) in black hole systems in the very high spectral state.