Effects of adiabatic index on the sonic surface and time variability of low angular momentum accretion flows
arXiv:1905.02289 · doi:10.1093/mnras/stz1296
Abstract
We study the role of adiabatic index in determining the critical points in the transonic low angular momentum accretion flow onto a black hole. We present the general relativistic 2D hydrodynamic simulations of axisymmetric, inviscid accretion flows in a fixed Kerr black hole gravitational field. A relativistic fluid where its bulk velocity is comparable to the speed of light, flowing in the accretion disk very close to the horizon can be described by an adiabatic index of 4/3 < γ < 5/3. The time dependent evolution of the shock position and respective effects on mass accretion rate and oscillation frequency with varying adiabatic index is discussed in the context of the observed microquasars.
arXiv comment15 pages, 15 figures , accepted in Monthly Notices of the Royal Astronomical Society , Manuscript ID : MN-19-1025-MJ.R1
References in corpus (43)
- Gamma-Ray Bursts
- HARM: A Numerical Scheme for General Relativistic Magnetohydrodynamics
- Spectral Properties of Accretion Disks Around Galactic and Extragalactic Black Holes
- Three-dimensional MHD Simulations of Radiatively Inefficient Accretion Flows
- Self-Similar Accretion Flows with Convection
- Black Hole Spin Evolution
- Unified Description of Accretion Flows Around Black Holes
- Accretion Disk Boundary Layers Around Neutron Stars: X-ray Production in Low-Mass X-ray Binaries
- Accretion flow dynamics during the evolution of timing and spectral properties of GX 339-4 during its 2010-11 outburst
- Hybrid Thermal-Nonthermal Synchrotron Emission from Hot Accretion Flows
- Fast variability as a tracer of accretion regimes in black hole transients
- A Magnetohydrodynamic Nonradiative Accretion Flow in Three Dimensions
- The faint "heartbeats" of IGR J17091-3624: an exceptional black-hole candidate
- Tracing the power-law component in the energy spectrum of black hole candidates as a function of the QPO frequency
- Accretion of low angular momentum material onto black holes: 2D hydrodynamical inviscid case
- Accretion Processes On a Black Hole
- Correlations between Low-Frequency QPOs and Spectral Parameters in XTE J1550-564 and GRO J1655-40
- Hot accretion flow in black hole binaries: a link connecting X-rays to the infrared
- Variable-Frequency QPOs from the Galactic Microquasar GRS 1915+105
- Variability of X-ray binaries from an oscillating hot corona
- RE J1034+396: The origin of the soft X-ray excess and QPO
- Evolution of the quasi-periodic oscillation frequency in GRO J1655-40 -- Implications for accretion disk dynamics
- Spectral Properties of Accretion Disks Around Black Holes II -- Sub-Keplerian Flows With and Without Shocks
- Hot One-Temperature Accretion Flows Around Black Holes
- Evolution of a neutrino-cooled disc in Gamma-Ray Bursts
- Determination of mass of IGR J17091-3624 from "Spectro-Temporal" variations during onset-phase of the 2011 outburst
- Effects of Fluid Composition on Spherical Flows around Black Holes
- On different types of instabilities in black hole accretion discs. Implications for X-ray binaries and AGN
- Shocks in the relativistic transonic accretion with low angular momentum
- Oscillating shocks in the low angular momentum flows as a source of variability of accreting black holes
- USA and RXTE Observations of a Variable Low-Frequency QPO in XTE J1118+480
- Low Frequency (11 mHz) Oscillations in H1743-322: A New Class of Black Hole QPOs?
- Hysteresis effects and diagnostics of the shock formation in low angular momentum axisymmetric accretion in the Kerr metric
- Why is IGR J17091-3624 so faint? Constraints on distance, mass, and spin from `phase-resolved' spectroscopy of the `heartbeat' oscillations
- Dissipative advective accretion disc solutions with variable adiabatic index around black holes
- First simultaneous multi-wavelength observations of the black hole candidate IGR J17091-3624: ATCA, INTEGRAL, Swift, and RXTE views of the 2011 outburst
- Low angular momentum relativistic hot accretion flow around Kerr black holes with variable adiabatic index
- Magnetothermal disk winds in X-ray binaries: poloidal magnetic fields suppress thermal winds
- Time Evolution of the 3-D Accretion Flows: Effects of the Adiabatic Index and Outer Boundary Condition
- Discovery of a Highly Variable Dipping Ultraluminous X-ray source in M94
- Radiative Spectra from Disk Corona and Inner Hot Flow in Black Hole X-ray Binaries
- Time variability of accretion flows: effects of the adiabatic index and gas temperature
- Accretion in a dynamical spacetime and spinning up of the black hole in the gamma ray burst central engine
Cited by in corpus (15)
- A Comprehensive Power Spectral Density Analysis of Astronomical Time Series. II. The Swift/BAT Long Gamma-Ray Bursts
- Alive but Barely Kicking: News from 3+ years of Swift and XMM-Newton X-ray Monitoring of Quasi-Periodic Eruptions from eRO-QPE1
- Coupled differential-algebraic equations framework for modeling six-degree-of-freedom flight dynamics of asymmetric fixed-wing aircraft
- On the maximum stellar rotation to form a black hole without an accompanying luminous transient
- Can MAD accretion disks launching structured jets explain both GRB and AGN engines? Magnetically arrested accretion disks launching structured jets in application to GRB and AGN engines
- Outflows from inflows: the nature of Bondi-like accretion
- Accretion induced black hole spin up revised by numerical GR MHD simulations
- Clumpy wind accretion in Cygnus X-1
- Self-gravitating collapsing star and black hole spin-up in long gamma ray bursts
- Influence of flow thickness on general relativistic low angular momentum accretion around spinning black holes
- Carter-Penrose diagrams for emergent spacetime in axisymmetrically accreting black hole systems
- Simulations of black hole accretion torus in various magnetic field configurations
- Three-dimensional GRMHD simulations of jet formation and propagation in self-gravitating collapsing stars
- Time variability of low angular momentum accretion flows around black hole
- Bridging Bondi and Event Horizon Scales: 3D GRMHD Simulations Reveal X-Shaped Radio Galaxy Morphology