Relativistic Tidal Acceleration of Astrophysical Jets
arXiv:1703.10843 · doi:10.1103/PhysRevD.95.104029
Abstract
Within the framework of general relativity, we investigate the tidal acceleration of astrophysical jets relative to the central collapsed configuration ("Kerr source"). We neglect electromagnetic forces throughout. The rest frame of the Kerr source is locally defined via the set of hypothetical static observers in the spacetime exterior to the source. Relative to such a fiducial observer fixed on the rotation axis of the Kerr source, jet particles are tidally accelerated to almost the speed of light if their outflow speed is above a certain threshold, given roughly by one half of the Newtonian escape velocity at the location of the reference observer; otherwise, the particles reach a certain height, reverse direction and fall back toward the gravitational source.
26 pages, 6 figures, revtex macros used. Revised version matching the published one. v3: typos corrected in equations (5) and (10)-(12)
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Cited by in corpus (16)
- Twisted Gravitational Waves
- Deviation of nonradial geodesics in a static spherically symmetric space-time
- Comment on "Acceleration of particles to high energy via gravitational repulsion in the Schwarzschild field" [Astropart. Phys. 86 (2017) 18-20]
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- Static and Dynamic Melvin Universes
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- Geodesic deviation on symmetry axis in Taub-NUT metric
- Tidal properties of D-dimensional Tangherlini black holes
- Physics in precision-dependent normal neighborhoods
- Repulsive effect for the unbound high energy particles along the rotation axis in the Kerr-Taub-NUT spacetime
- Efectos del campo magnético en un gas de bosones vectoriales neutros: aplicaciones astrofísicas
- General Relativistic Gravity Gradiometry
- Acceleration of particles in Schwarzschild and Kerr geometries
- Jacobi Fields and Tidal Effects in Kerr Spacetime
- On-Axis Tidal Forces in Kerr Spacetime
- Relativistic Tidal Accelerations in the Exterior Schwarzschild Spacetime