High-energy hyperbolic scattering by neutron stars and black holes

Abstract

We investigate the hyperbolic scattering of test particles, spinning test particles and particles with spin-induced quadrupolar structure by a Kerr black hole in the ultrarelativistic regime. We also study how the features of the scattering process modify if the source of the background gravitational field is endowed with a nonzero mass quadrupole moment as described by the (approximate) Hartle-Thorne solution. We compute the scattering angle either in closed analytical form, when possible, or as a power series of the (dimensionless) inverse impact parameter. It is a function of the parameters characterizing the source (intrinsic angular momentum and mass quadrupole moment) as well as the scattered body (spin and polarizability constant). Measuring the scattering angle thus provides useful information to determine the nature of the two components of the binary system undergoing high-energy scattering processes.

12 pages; 2 figures; revtex macros used

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Cited by in corpus (6)

• Sixth post-Newtonian local-in-time dynamics of binary systems
• Sixth post-Newtonian nonlocal-in-time dynamics of binary systems
• Effect of Particle Spin on Trajectory Deflection and Gravitational Lensing
• Relativistic scattering of a fast spinning neutron star by a massive black hole
• Scattering of uncharged particles in the field of two extremely charged black holes
• Black hole geodesic parallel transport and the Marck recipe for isolating cumulative precession effects