INVESTIGADORES
MORESCHI Osvaldo Mario
artículos
Título:
Intrinsic angular momentum and center of mass ingeneral relativity
Autor/es:
OSVALDO M. MORESCHI
Revista:
CLASSICAL AND QUANTUM GRAVITY
Editorial:
IOP PUBLISHING LTD
Referencias:
Año: 2004 vol. 21 p. 5409 - 5425
ISSN:
0264-9381
Resumen:
There are several definitions in the literature of the notion of total angular momentum in general relativity. However none of them can be said to capture the physical notion of intrinsic angular momentum of the sources in the presence of gravitational radiation. We present a definition of angular momentum for radiative spacetimes which does not suffer from any ambiguity of supertranslations. We have succeeded in providing an appropriate notion of {it intrinsic} angular momentum; and at the same time a definition of {it center of mass} frame at future null infinity. This notion is required in calculations involving radiation of angular momentum, as for example is expected in binary coalescence of black holes.
