Choked accretion onto Kerr-Sen black holes in Einstein-Maxwell-dilaton-axion gravity

Abstract

We investigate the process of an ultrarelativistic fluid accreted onto axisymmetric Kerr-Sen black holes in Einstein-Maxwell-dilaton-axion theory. We obtain the solution describing the velocity potential of a stationary irrotational fluid with a stiff equation of state and the solution for the streamlined diagram of the quadrupolar flow. We also investigate how the solution's coefficients and the stagnation points are affected by the parameters. The injection rate, the ejection rate, and the critical angle are discussed in detail. We find that with an increasing dilaton parameter the ratio of the ejection rate to the injection rate increases and that the radiative efficiency is larger, while the redshift is lower, compared to the Kerr black hole.

arXiv comment25pages,10 figures

References in corpus (50)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Modified Gravity and Cosmology
• The Confrontation between General Relativity and Experiment
• Foundations of Black Hole Accretion Disk Theory
• General Relativistic Magnetohydrodynamic Simulations of Jet Formation and Large-Scale Propagation from Black Hole Accretion Systems
• Black hole mass decreasing due to phantom energy accretion
• Rotating Charged Black Hole Solution in Heterotic String Theory
• Accretion onto the Supermassive Black Hole in M87
• MOND and the "Dearth of Dark Matter in Ordinary Elliptical Galaxies"
• Simulations of Jets Driven by Black Hole Rotation
• Bardeen-Petterson Alignment, Jets and Magnetic Truncation in GRMHD Simulations of Tilted Thin Accretion Discs
• Hydrodynamic Simulations of Tilted Thick-Disk Accretion onto a Kerr Black Hole
• Measuring Mass Accretion Rate onto the Supermassive Black Hole in M 87 Using Faraday Rotation Measure with the Submillimeter Array
• Non-axisymmetric relativistic Bondi-Hoyle accretion onto a Kerr black hole
• Fluid accretion onto a spherical black hole: relativistic description versus Bondi model
• Ultra-hard fluid and scalar field in the Kerr-Newman metric
• Accretion onto a black hole in a string cloud background
• Evolution of a Kerr-Newman black hole in a dark energy universe
• Physical Properties of Four Dimensional Superstring Gravity Black Hole Solutions
• Accretion of New Variable Modified Chaplygin Gas and Generalized Cosmic Chaplygin Gas onto Schwarzschild and Kerr-Newman Black holes
• Hidden and Generalized Conformal Symmetry of Kerr-Sen Spacetimes
• Jet launching in resistive GR-MHD black hole - accretion disk systems
• Universality and backreaction in a general-relativistic accretion of steady fluids
• Recurrent Acceleration in Dilaton-Axion Cosmology
• Quantum gravity corrections to accretion onto a Schwarzschild black hole
• Accretion of Dark Matter onto a Moving Schwarzschild Black Hole: An Exact Solution
• Hydrodynamic accretion onto rapidly rotating Kerr black hole
• Thin accretion disk luminosity and its image around rotating black holes in perfect fluid dark matter
• Stationary Charged Scalar Clouds around Black Holes in String Theory
• Accretion onto a Kiselev black hole
• Accretion of the relativistic Vlasov gas onto a moving Schwarzschild black hole: Exact solutions
• Accretion of the Vlasov gas onto a Schwarzschild-like black hole
• Rigidly rotating ZAMO surfaces in the Kerr spacetime
• Implications of Einstein-Maxwell dilaton-axion gravity from the black hole continuum spectrum
• Thin accretion disks around a black hole in Einstein-Aether-scalar theory
• Accretion Onto the Supermassive Black Hole in the High-redshift Radio-loud AGN 0957+561
• Accretion onto a noncommutative geometry inspired black hole
• Axion-Dilaton Cosmology and Dark Energy
• Adiabatic accretion onto black holes in Einstein-Maxwell-scalar theory
• Positivity of Energy in Einstein-Maxwell Axion-dilaton gravity
• Accretion disc around black hole in Einstein-$SU(N)$ non-linear sigma model
• Choked accretion: from radial infall to bipolar outflows by breaking spherical symmetry
• Accretion onto a Moving Reissner-Nordström Black Hole
• Choked accretion onto a Schwarzschild black hole: A hydrodynamical jet-launching mechanism
• Spherically-symmetric Accretion onto a Black Hole at the Center of a Young Stellar Cluster
• Constraints from accretion onto a Tangherlini-Reissner-Nordstrom black hole
• Choked accretion onto a Kerr black hole
• Phase-Transition Theory of Kerr Black Holes in Electromagnetic Field
• Hot Settling Accretion Flow onto a Spinning Black Hole
• Exact solution for accretion onto a moving charged dilaton black hole

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