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  Hyperbolic scattering of spinning particles by a Kerr black hole

Bini, D., Geralico, A., & Vines, J. (2017). Hyperbolic scattering of spinning particles by a Kerr black hole. Physical Review D, 96: 084044. doi:10.1103/PhysRevD.96.084044.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-DB36-B Version Permalink: http://hdl.handle.net/21.11116/0000-0002-E878-2
Genre: Journal Article

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 Creators:
Bini, Donato, Author
Geralico, Andrea, Author
Vines, Justin1, Author              
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc
 Abstract: We investigate the scattering of a spinning test particle by a Kerr black hole within the Mathisson-Papapetrou-Dixon model to linear order in spin. The particle's spin and orbital angular momentum are taken to be aligned with the black hole's spin. Both the particle's mass and spin length are assumed to be small in comparison with the characteristic length scale of the background curvature, in order to avoid backreaction effects. We analytically compute the modifications due to the particle's spin to the scattering angle, the periastron shift, and the condition for capture by the black hole, extending previous results valid for the nonrotating Schwarzschild background. Finally, we discuss how to generalize the present analysis beyond the linear approximation in spin, including spin-squared corrections in the case of a black-hole-like quadrupolar structure for the extended test body.

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 Dates: 2017-07-312017
 Publication Status: Published in print
 Pages: 12 pages, 3 figures, revtex macros
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 Table of Contents: -
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 Identifiers: arXiv: 1707.09814
DOI: 10.1103/PhysRevD.96.084044
URI: http://arxiv.org/abs/1707.09814
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Title: Physical Review D
Source Genre: Journal
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Pages: - Volume / Issue: 96 Sequence Number: 084044 Start / End Page: - Identifier: -