High-powered gravitational news

Nigel T. Bishop, Roberto Gómez, Luis Lehner, Manoj Maharaj, and Jeffrey Winicour
Phys. Rev. D 56, 6298 – Published 15 November 1997
PDFExport Citation

Abstract

We describe the computation of the Bondi news for gravitational radiation. We have implemented a computer code for this problem. We discuss the theory behind it as well as the results of validation tests. Our approach uses the compactified null cone formalism, with the computational domain extending to future null infinity and with a world tube as inner boundary. We calculate the appropriate full Einstein equations in computational eth form in (a) the interior of the computational domain and (b) on the inner boundary. At future null infinity, we transform the computed data into standard Bondi coordinates and so are able to express the news in terms of its standard N+ and N× polarization components. The resulting code is stable and second-order convergent. It runs successfully even in the highly nonlinear case, and has been tested with the news as high as 400, which represents a gravitational radiation power of about 1013M/sec.

  • Received 8 May 1997

DOI:https://doi.org/10.1103/PhysRevD.56.6298

©1997 American Physical Society

Authors & Affiliations

Nigel T. Bishop1, Roberto Gómez2, Luis Lehner2, Manoj Maharaj3, and Jeffrey Winicour2

  • 1Department of Mathematics, Applied Mathematics and Astronomy, University of South Africa, P.O. Box 392, Pretoria 0003, South Africa
  • 2Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
  • 3Department of Mathematics and Applied Mathematics, University of Durban-Westville, Durban 4000, South Africa

References (Subscription Required)

Click to Expand
Issue

Vol. 56, Iss. 10 — 15 November 1997

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review D

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×