Circular motion in NUT space-time

Abstract

We consider circular motion in the NUT (Newman-Unti-Tamburino) space-time. Among other things, we determine the location of circular time-like geodesic orbits, in particular of the innermost stable circular orbit (ISCO) and of the marginally bound circular orbit. Moreover, we discuss the von Zeipel cylinders with respect to the stationary observers and with respect to the Zero Angular Momentum Observers (ZAMOs). We also investigate the relation of von Zeipel cylinders to inertial forces, in particular in the ultra-relativistic limit. Finally, we generalise the construction of thick accretion tori ("Polish doughnuts") which are well known on the Schwarzschild or Kerr background to the case of the NUT metric. We argue that, in principle, a NUT source could be distinguished from a Schwarzschild or Kerr source by observing the features of circular matter flows in its neighbourhood.

arXiv comment25 pages, 9 figures

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Cited by in corpus (28)

• Can test fields destroy the event horizon in the Kerr-Taub-NUT spacetime?
• Circular orbits in Kerr-Taub-NUT spacetime and their implications for accreting black holes and naked singularities
• On some novel features of the Kerr-Newman-NUT Spacetime
• On the properties of a deformed extension of the NUT space-time
• Multipole moments of compact objects with NUT charge: Theoretical and observational implications
• Application of the Gauss-Bonnet theorem to lensing in the NUT metric
• Equilibrium non-selfgravitating tori around black holes in parameterised spherically symmetric spacetimes
• Possible connection between the reflection symmetry and existence of equatorial circular orbit
• Magnetized Kerr-Newman-Taub-NUT spacetimes
• Magnetized Kerr-Taub-NUT spacetime and Kerr/CFT correspondence
• Charged fluid structures around a rotating compact object with a magnetic dipole field
• Strong cosmic censorship conjecture with NUT charge and conformal coupling
• Remarks on the Taub-NUT solution in Chern-Simons modified gravity
• Kerr-Sen-Taub-NUT spacetime and circular geodesics
• Gravitational Lensing of Massive Particles in the Charged NUT Spacetime
• Curved accretion disks around rotating black holes without reflection symmetry
• Stationary rotating and axially symmetric dust systems as peculiar General Relativistic objects
• The equatorial motion of the charged test particles in Kerr-Newman-Taub-NUT spacetime
• Magnetized Taub-NUT spacetime
• Gravitational Lensing in the Charged NUT-de Sitter Spacetime
• Rotating and charged Taub-NUT-(A)dS spacetimes on a 3-brane
• Nutty black holes in galileon scalar-tensor gravity
• Characterisation of circular light rays in a plasma
• Second order variations and the overspinning problem in Kerr-Taub-NUT spacetime
• Pure Gauss-Bonnet NUT black hole with and without non-central singularity
• A group-theoretic characterisation of Taub-Nut spacetime
• Thin Accretion Disks around Rotating Charged Black Holes in an Effective Higher-Curvature Spacetime
• The scalar angular Teukolsky equation and its solution for the Taub-NUT spacetime