Estimating energy-momentum and angular momentum near null infinity

Adam D. Helfer
Phys. Rev. D 81, 084001 – Published 1 April 2010

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.

  • Received 20 July 2009

DOI:https://doi.org/10.1103/PhysRevD.81.084001

©2010 American Physical Society

Authors & Affiliations

Adam D. Helfer*

  • Department of Mathematics, University of Missouri, Columbia, Missouri 65211, USA

  • *helfera@missouri.edu

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Issue

Vol. 81, Iss. 8 — 15 April 2010

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