QPO as the Rosetta Stone for understanding black hole accretion

Abstract

Quasi periodic oscillations (QPO) seen in the X-ray fluxes of individual neutron stars and black hole sources are one of most intriguing phenomena in today's astrophysics. The QPO nature is visibly determined by super-strong Einstein's gravity. I argue here that it also profoundly depends on the MRI turbulence in accretion flows. Understanding the QPO physics may therefore guide accretion theory out of its present state of confusion.

arXiv comment5 pages, 2 figures

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• Thermal Equilibria of Accretion Disks
• A precise determination of angular momentum in the black hole candidate GRO J1655-40
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Cited by in corpus (24)

• General Relativistic Magnetohydrodynamic Simulations of Magnetically Choked Accretion Flows around Black Holes
• Foundations of Black Hole Accretion Disk Theory
• X-ray emission from black-hole binaries
• Epicyclic oscillations of fluid bodies Paper II. Strong gravity
• X-Ray Polarimetry with the Polarization Spectroscopic Telescope Array (PolSTAR)
• Epicyclic Oscillations of Fluid Bodies: Newtonian Nonslender Torus
• Multi-wavelength Intra-day Variability and Quasi-periodic Oscillation in Blazars
• Difficulties of Quantitative Tests of the Kerr-Hypothesis with X-Ray Observations of Mass Accreting Black Holes
• Frequency Correlations of QPOs Based on a Disk Oscillation Model in Warped Disks
• Oscillations of tori in the pseudo-Newtonian potential
• Quasi-periodic behaviour in the $\gamma$-ray light curve of the blazar PKS 0405-385
• An Attempt to Describe Frequency Correlations among kHz QPOs and HBOs by Two-Armed Nearly Vertical Oscillations
• Standing Shock Instability in Advection-Dominated Accretion Flows
• Detection of Quasi-Periodic Oscillations in the Blazar S4 0954+658 with TESS
• Modeling the time-resolved quasi-periodic oscillations in AGNs
• Resonant Excitation of Disk Oscillations in Two-Armed-Deformed Disks and Application to High-Frequency QPOs
• Coupling between the 45 Hz Horizontal-Branch Oscillation and the Normal Branch Oscillation in Scorpius X-1
• An Attempt to Describe Frequency-Correlations among kHz QPOs and HBOs by Two-Armed Vertical p-mode Oscillations: Case of No Magnetic Field
• Correlated Frequency-Changes of Trapped Vertical p-mode Oscillations and kHz QPOs
• A Possible Origin of kHZ QPOs in Low-Mass X-ray Binaries
• Correlation between 3:2 QPO pairs and Jets in Black Hole X-ray Binaries
• Persistent Patterns in Accretion Disks
• Frequency Variation of the Kilohertz Quasi-periodic Oscillations and the Flux of the Band-limited Noise in Scorpius X-1
• QPOs: Einstein's gravity non-linear resonances