Adiabatic theory in Kerr spacetimes
Abstract
We present the main aspects of the adiabatic theory and show that it can be used to study the motion of test particles in general relativity. The theory is based upon the use of vector elements of the orbits and adiabatic invariants. To prove the applicability of the adiabatic theory in Einstein's gravity, we derive a particular representation of the Kerr metric in harmonic coordinates, which allows us to obtain a general formula for the perihelion shift of test particles orbiting on the non-equatorial plane of a rotating central object. We show that the principle of superposition is fulfilled for the individual effects of the gravitational source mass and angular momentum up to the second order. We demonstrate that the adiabatic theory, along with its simplicity, leads to correct results, which in the limiting cases correspond to the ones reported in the literature.
Cite
@article{arxiv.2207.07899,
title = {Adiabatic theory in Kerr spacetimes},
author = {Kuantay Boshkayev and Gulmira Nurbakyt and Hernando Quevedo and Gulnara Suliyeva and Abylaikhan Tlemissov and Zhanerke Tlemissova and Anar Dalelkhankyzy and Aliya Taukenova and Ainur Urazalina and Zdeněk Stuchlík},
journal= {arXiv preprint arXiv:2207.07899},
year = {2023}
}
Comments
11 pages, 2 figures, 1 table. arXiv admin note: text overlap with arXiv:2205.04217