Effect of radiation flux on test-particle motion in the Vaidya spacetime

Article

Effect of radiation flux on test-particle motion in the Vaidya spacetime

Bini, D.; Geralico, A.; Jantzen, R. T.; Semerák, O.

Class. Quantum Grav. 28(24), 245019 (2011)

Abstract

Motion of massive test particles in the nonvacuum spherically symmetric
radiating Vaidya spacetime is investigated, allowing for the physical interaction
of the particles with the radiation field in terms of which the source energy–
momentum tensor is interpreted. This ‘Poynting–Robertson-like effect’ is
modeled by a usual effective term describing a Thomson-type radiation
drag force. The equations of motion are studied for simple types of motion
including free motion (without interaction), purely radial and purely azimuthal
(circular)motion, and for the particular case of ‘static’ equilibrium; appropriate
solutions are given where possible. The results—mainly those on the possible
existence of equilibrium positions—are compared with their counterparts
obtained previously for a spherically symmetric test radiation field in a vacuum
Schwarzschild background.

Institute authors

Semerák, Oldřich

Supported by

GACR 202/09/0772 — Current problems of gravitation, general relativity and relativistic astrophysics
LC06014 — Centrum teoretické astrofyziky
MSM0021620860 — Fyzikální studium objektů a procesů ve sluneční soustavě a v astro-fyzikálních systémech

BibTeX

@article{UTF493,
  author        = {Bini, D. and Geralico, A. and Jantzen, R. T. and Semerák, O.},
  title         = {{Effect of radiation flux on test-particle motion in the Vaidya spacetime}},
  journal       = {Class. Quantum Grav.},
  volume        = {28},
  number        = {24},
  pages         = {245019},
  year          = {2011},
  month         = {12},
  doi           = {10.1088/0264-9381/28/24/245019},
}