Estimating Energy-Momentum and Angular Momentum Near Null Infinity
General Relativity and Quantum Cosmology
2010-04-14 v2
Abstract
The energy-momentum and angular momentum contained in a spacelike two-surface of spherical topology are estimated by joining the two-surface to null infinity via an approximate no-incoming-radiation condition. The result is a set of gauge-invariant formulas for energy-momentum and angular momentum which should be applicable to much numerical work; it also gives estimates of the finite-size effects.
Cite
@article{arxiv.0907.3461,
title = {Estimating Energy-Momentum and Angular Momentum Near Null Infinity},
author = {Adam D. Helfer},
journal= {arXiv preprint arXiv:0907.3461},
year = {2010}
}
Comments
26 pp. Corrections to the section on evolution. Version accepted by Phys. Rev. D