INVESTIGADORES
MORESCHI Osvaldo Mario
artículos
Título:
Estimating total momentum at finite distances
Autor/es:
EMANUEL GALLO; LUIS LEHNER; OSVALDO M. MORESCHI
Revista:
PHYSICAL REVIEW D - PARTICLE AND FILDS
Editorial:
APS
Referencias:
Año: 2008 vol. 79 p. 1 - 11
ISSN:
0556-2821
Resumen:
We study the difficulties associated with the evaluation of the total Bondi momentum at finite distances around the central source of a general (asymptotically flat) spacetime. Since the total momentum is only rigorously defined at future null infinity, both finite distance and gauge effects must be taken into account for a correct computation of this quantity. Our discussion is applicable in general contexts but is particularly relevant in numerically constructed spacetimes for both extracting important physical information and assessing the accuracy of additional quantities.
