Published February 21, 2009 | Version v1
Journal article Metadata-only

A note on computations of angular momentum and its flux in numerical relativity

Creators

  • 1. Instituto de Fisica (CONICET) FaMAF, Universidad Nacional de Cordoba Ciudad Universitaria, (5000) Cordoba (Argentina)
  • 2. Department of Physics and Astronomy, LSU, Baton Rouge, LA 70803 (United States)

Description

The purpose of this note is to point out ambiguities that appear in the calculation of angular momentum and its radiated counterpart when some simple formulae are used to compute them. We illustrate, in two simple different examples, how incorrect results can be obtained with them. Additionally, we discuss the magnitude of possible errors in well-known situations. (comments, replies and notes)

Availability note (English)

Available from http://dx.doi.org/10.1088/0264-9381/26/4/048002

Additional details

Identifiers

DOI
10.1088/0264-9381/26/4/048002;
PII
S0264-9381(09)94538-5;

Publishing Information

Journal Title
Classical and Quantum Gravity
Journal Volume
26
Journal Issue
4
Journal Page Range
[9 p.]
ISSN
0264-9381
CODEN
CQGRDG

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41106103
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
ANGULAR MOMENTUM; CALCULATION METHODS; ERRORS; NUMERICAL ANALYSIS
Descriptors DEC
MATHEMATICS