Non-monotonic Keplerian velocity profiles around near-extreme braneworld Kerr black holes

Abstract

We study the non-monotonic Keplerian velocity profiles related to locally non-rotating frames (LNRF) in the field of near-extreme braneworld Kerr black holes and naked singularities in which the non-local gravitational effects of the bulk are represented by a braneworld tidal charge $b$ and the 4D geometry of the spacetime structure is governed by the Kerr-Newman geometry. We show that positive tidal charge has a tendency to restrict the values of the black hole dimensionless spin $a$ admitting existence of the non-monotonic Keplerian LNRF-velocity profiles; the non-monotonic profiles exist in the black hole spacetimes with tidal charge smaller than $b=0.41005$ (and spin larger than $a=0.76808$). With decreasing value of the tidal charge (which need not be only positive), both the region of spin allowing the non-monotonicity in the LNRF-velocity profile around braneworld Kerr black hole and the velocity difference in the minimum-maximum parts of the velocity profile increase implying growing astrophysical relevance of this phenomenon.

References in corpus (30)

• A Large Mass Hierarchy from a Small Extra Dimension
• The Einstein Equations on the 3-Brane World
• Black holes on the brane
• Stars in the braneworld
• Charged Rotating Black Holes on a 3-Brane
• Optical phenomena in brany Kerr spacetimes
• Appearance of Keplerian discs orbiting Kerr superspinars
• Charged Particle Motion Around Rotating Black Hole in Braneworld Immersed in Magnetic Field
• Astrophysical Violations of the Kerr Bound as a Possible Signature of String Theory
• Search for Microscopic Black Hole Signatures at the Large Hadron Collider
• Gravity and large black holes in Randall-Sundrum II braneworlds
• Measuring mass and angular momentum of black holes with high-frequency quasi-periodic oscillations
• Near-infrared polarimetry setting constraints on the orbiting spot model for Sgr A* flares
• Relativistic Images in Randall-Sundrum II Braneworld Lensing
• Gravitational Effects of Rotating Braneworld Black Holes
• Classical tests of general relativity in brane world models
• The Aschenbach effect: unexpected topology changes in motion of particles and fluids orbiting rapidly rotating Kerr black holes
• QPOs in microquasars and Sgr A*: measuring the black hole spin
• Constraints on the absorption-dominated model for the X-ray spectrum of MCG-6-30-15
• Role of emission angular directionality in spin determination of accreting black holes with broad iron line
• Humpy LNRF-velocity profiles in accretion discs orbiting nearly extreme Kerr black holes. A possible relation to QPOs
• Photon and neutrino redshift in the field of braneworld compact stars
• Spectral Variation of the Seyfert 1 Galaxy MCG-6-30-15 observed with Suzaku
• Mass estimate of the XTE J1650-500 black hole from the Extended Orbital Resonance Model for high-frequency QPOs
• Plasma Magnetosphere of Rotating Magnetized Neutron Star in the Braneworld
• Non-monotonic orbital velocity profiles around rapidly rotating Kerr-(anti-)de Sitter black holes
• Measurement of Mass and Spin of Black Holes with QPOs
• Black Holes Admitting Strong Resonant Phenomena
• Distribution of kilohertz QPO frequencies and their ratios in the atoll source 4U 1636-53
• On non-monotonic orbital velocity profiles around rapidly rotating Kerr-(anti)de Sitter black holes: acomment to the recently published results

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• Multi-resonance orbital model of high-frequency quasi-periodic oscillations: possible high-precision determination of black hole and neutron star spin
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• Marginally Stable Circular Orbits in Schwarzschild Black Hole Surrounded by Quintessence Matter
• A Slowly Rotating Black Hole in Horava-Lifshitz Gravity and a 3+1 Dimensional Topological Black Hole: Motion of Particles and BSW Mechanism
• Aschenbach effect and circular orbits in static and spherically symmetric black hole backgrounds
• Aschenbach effect for spinning particles in Kerr spacetime
• Static spheres and Aschenbach effect for black holes in massive gravity
• Aschenbach effect for spinning particles in Kerr-(A)dS spacetime