Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session G11: Numerical Relativity: Algorithms and Code Development
8:30 AM–10:18 AM,
Sunday, April 14, 2019
Sheraton
Room: Governor's Square 17
Sponsoring
Unit:
DGRAV
Chair: Thomas Baumgarte, Bowdoin College
Abstract: G11.00004 : Efficient extraction of Weyl scalars from numerical simulations using a non-orthonormal tetrad*
9:06 AM–9:18 AM
View Presentation Abstract
Presenter:
Dante A B Iozzo
(Cornell University)
Authors:
Dante A B Iozzo
(Cornell University)
Michael Boyle
(Cornell University)
Mark A Scheel
(Caltech)
Lawrence E Kidder
(Cornell University)
Saul A Teukolsky
(Cornell University, Caltech)
We present a procedure that numerically constructs the Weyl scalars from the characteristic fields of the Weyl tensor evolution system. These characteristic fields are spatial, real, and computed directly from the extrinsic curvature and spatial Ricci tensor, which leads to efficient computation. Further computational efficiency improvements can be made by using a non-orthonormal tetrad defined as in Minkowski space and using an extrapolation procedure. An analysis of the extraction procedure is presented and the possible issue of junk radiation backscattering is addressed.
*NSF-GRFP
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700