Charged fluid structures around a rotating compact object with a magnetic dipole field

Abstract

We study stationary, electrically charged fluid structures encircling a rotating compact object with a dipole magnetic field oriented along the rotation axis. This situation is described in an idealized way by the Kerr metric and a magnetic dipole "test" field, that does not affect the spacetime. The self-gravitational and self-electromagnetic field of the fluid are neglected and the fluid is assumed to be non conductive and in rigid motion. Our work generalizes a previous study by Kovář et al.(2016) by taking into account the rotation of the central object. Therefore, we focus on the influence of the rotation onto the existence and position of bound fluid structures. Frame dragging effects allow the existence of polar clouds, which could not be found in non-rotating case. Furthermore counter-rotating equatorial tori become more preferred the faster the central object is spinning.

References in corpus (10)

• Hot Accretion Flows Around Black Holes
• Foundations of Black Hole Accretion Disk Theory
• Magnetized Tori around Kerr Black Holes: Analytic Solutions with a Toroidal Magnetic Field
• Electrically charged matter in rigid rotation around magnetized black hole
• The runaway instability of thick discs around black holes. II. Non constant angular momentum discs
• Chaotic motion of Charged Particles in an Electromagnetic Field Surrounding a Rotating Black Hole
• Off-equatorial orbits in strong gravitational fields near compact objects
• General-relativistic electromagnetic fields around a slowly rotating neutron star: stationary vacuum solutions
• Circular motion in NUT space-time
• Equilibrium configurations of charged fluid around Kerr black hole

Cited by in corpus (10)

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• Embedded BHs and multipole globules: Clustered misaligned thick accretion disks around static SMBHs
• Stability of regular black holes and other compact objects with a charged de Sitter core and a surface matter layer
• Toroidal magnetic fields in self-gravitating disks around black holes
• Equilibrium of charged fluid around a Kerr black hole immersed in a magnetic field: variation of angular momentum
• Charged fluids encircling compact objects: force representations and conformal geometries
• Non-Keplerian Charged Accretion Disk Orbiting a Black Hole~Pulsar
• Stability of Rotating, Charged Fluids: Generalization of the Hoiland Conditions in Newtonian Non-conductive Case