Artículo
Center of mass and spin for isolated sources of gravitational radiation
Fecha de publicación:
03/2016
Editorial:
American Physical Society
Revista:
Physical Review D
ISSN:
0556-2821
e-ISSN:
1089-4918
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We define the center of mass and spin of an isolated system in general relativity. The resulting relationships between these variables and the total linear and angular momentum of the gravitational system are remarkably similar to their Newtonian counterparts, though only variables at the null boundary of an asymptotically flat spacetime are used for their definition. We also derive equations of motion linking their time evolution to the emitted gravitational radiation. The results are then compared to other approaches. In particular, one obtains unexpected similarities as well as some differences with results obtained in the postNewtonian literature. These equations of motion should be useful when describing the radiation emitted by compact sources, such as coalescing binaries capable of producing gravitational kicks, supernovas, or scattering of compact objects.
Palabras clave:
Center of mass
,
Gravitational radiation
,
Spin
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IFEG)
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Citación
Kozameh, Carlos Nicolas; Quiroga, Gonzalo Damián; Center of mass and spin for isolated sources of gravitational radiation; American Physical Society; Physical Review D; 93; 6; 3-2016; 1-18
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