Oscillating shocks in the low angular momentum flows as a source of variability of accreting black holes

Abstract

We derive the conditions for shock formation in a quasi-spherical, slightly rotating flows. We verify the results of semi-analytical, stationary calculations with the time evolution studied by numerical hydro-simulations, and we study the oscillations of the shock position. We also study the behaviour of flows with varying specific angular momentum, where the 'hysteresis' type of loop is found when passing through the multiple sonic points region. Our results are in agreement with the timescales and shapes of the luminosity flares observed in Sgr A*. These models may also be applicable for the Galactic stellar mass black holes, like GX 339-4 or GRS 1915+105, where periodic oscillations of X-ray luminosity are detected.

arXiv comment15 pages, 11 figures, 1 table; submitted to MNRAS

References in corpus (27)

• Advection-Dominated Accretion: A Self-Similar Solution
• Hot Accretion Flows Around Black Holes
• Spectral Properties of Accretion Disks Around Galactic and Extragalactic Black Holes
• Accretion disc viscosity: how big is alpha?
• Accretion onto the Supermassive Black Hole in M87
• The Shortest Known Period Star Orbiting our Galaxy's Supermassive Black Hole
• The late time evolution of Gamma-Ray Bursts: ending hyperaccretion and producing flares
• Correlation among QPO frequencies and Quiescence-state Duration in Black Hole Candidate GRS 1915+105
• Accretion flow dynamics during the evolution of timing and spectral properties of GX 339-4 during its 2010-11 outburst
• Chandra-HETGS Observations of the Brightest Flare Seen from Sgr A*
• Accretion of low angular momentum material onto black holes: 2D hydrodynamical inviscid case
• Variable accretion and emission from the stellar winds in the Galactic centre
• Beyond Flux-Limited Diffusion: Parallel Algorithms for Multidimensional Radiation Hydrodynamics
• Bondi flow from a slowly rotating hot atmosphere
• Generalized Shock Solutions for Hydrodynamic Black Hole Accretion
• Direct Feeding of the Black Hole at the Galactic Center with Radial Gas Streams from Close-In Stellar Winds
• The pattern of accretion flow onto Sgr A*
• The relation between radio and X-ray luminosity of black hole binaries: affected by inner cool disks?
• Hysteresis effects and diagnostics of the shock formation in low angular momentum axisymmetric accretion in the Kerr metric
• Critical properties and stability of stationary solutions in multi-transonic pseudo-Schwarzschild accretion
• The role of flow geometry in influencing the stability criteria for low angular momentum axisymmetric black hole accretion
• Time Evolution of the 3-D Accretion Flows: Effects of the Adiabatic Index and Outer Boundary Condition
• Low angular momentum flow model for Sgr A*
• Nonaxisymmetric Effects in the Black Hole Accretion Inviscid Hydrodynamics: Formation and Evolution of a Tilted Torus
• QPO frequencies and mass-outflow rates in black hole powered galactic microquasars
• Role of shocked accretion flows in regulating the QPO of galactic black hole candidates
• Low angular momentum flow model of Sgr A* activity

Cited by in corpus (33)

• Shocks in the relativistic transonic accretion with low angular momentum
• Estimation of mass outflow rates from dissipative accretion disc around rotating black holes
• Dynamical structure of magnetized dissipative accretion flow around black holes
• Shocks in relativistic viscous accretion flows around Kerr black holes
• Effects of adiabatic index on the sonic surface and time variability of low angular momentum accretion flows
• Chaotic and stochastic processes in the accretion flows of the black hole X-ray binaries revealed by recurrence analysis
• Properties of two-temperature magnetized advective accretion flow around rotating black hole
• Low angular momentum relativistic hot accretion flow around Kerr black holes with variable adiabatic index
• Constraining the mass of the black hole GX 339-4 using spectro-temporal analysis of multiple outbursts
• The Effects of Gas Angular Momentum on the Formation of Magnetically Arrested Disks and the Launching of Powerful Jets
• Alive but Barely Kicking: News from 3+ years of Swift and XMM-Newton X-ray Monitoring of Quasi-Periodic Eruptions from eRO-QPE1
• On the maximum stellar rotation to form a black hole without an accompanying luminous transient
• Three Dimensional Simulations of Advective, Sub-Keplerian Accretion Flow onto Non-rotating Black Holes
• Jet production in black-hole X-ray binaries and active galactic nuclei: mass feeding and advection of magnetic fields
• Viscosity parameter in dissipative accretion flows with mass outflow around black holes
• Accretion in a dynamical spacetime and spinning up of the black hole in the gamma ray burst central engine
• Black Hole spin dependence of general relativistic multi-transonic accretion close to the horizon
• Accretion-ejection in rotating black holes: a model for `outliers' track of radio-X-ray correlation in X-ray binaries
• Acoustic geometry obtained through the perturbation of the Bernoulli's constant
• Linear perturbations of low angular momentum accretion flow in the Kerr metric and the corresponding emergent gravity phenomena
• Standing shocks in magnetized advection accretion flows onto a rotating black hole
• Relativistic sonic geometry for isothermal accretion in the Kerr metric
• Accretion induced black hole spin up revised by numerical GR MHD simulations
• Clumpy wind accretion in Cygnus X-1
• Standing Shocks in Magnetized Dissipative Accretion Flow around Black Holes
• Self-gravitating collapsing star and black hole spin-up in long gamma ray bursts
• A non-linear mathematical model for the X-ray variability classes of the microquasar GRS 1915+105 -- I: quiescent, spiking states and QPOs
• Influence of flow thickness on general relativistic low angular momentum accretion around spinning black holes
• Effective sound speed in relativistic accretion discs around Schwarzschild black holes
• Carter-Penrose diagrams for emergent spacetime in axisymmetrically accreting black hole systems
• Three-dimensional GRMHD simulations of jet formation and propagation in self-gravitating collapsing stars
• On the origin of core radio emissions from black hole sources in the realm of relativistic shocked accretion flow
• Bridging Bondi and Event Horizon Scales: 3D GRMHD Simulations Reveal X-Shaped Radio Galaxy Morphology