Utilize este identificador para referenciar este registo: http://hdl.handle.net/1822/59047

TítuloGravitational radiation and the evolution of gravitational collapse in cylindrical symmetry
Autor(es)García-Parrado Gómez-Lobo, Alfonso
Mena, Filipe C.
Palavras-chaveQuasi-local energy
Gravitational waves
Sparling form
DataJun-2019
EditoraElsevier
RevistaDifferential Geometry and its Applications
Resumo(s)Using the Sparling form and a geometric construction adapted to spacetimes with a 2-dimensional isometry group, we analyse a quasi-local measure of gravitational energy. We then study the gravitational radiation through spacetime junctions in cylindrically symmetric models of gravitational collapse to singularities. The models result from the matching of collapsing dust fluids interiors with gravitational wave exteriors, given by the Einstein-Rosen type solutions. For a given choice of a frame adapted to the symmetry of the matching hypersurface, we are able to compute the total gravitational energy radiated during the collapse and state whether the gravitational radiation is incoming or outgoing, in each case. This also enables us to distinguish whether a gravitational collapse is being enhanced by the gravitational radiation.
Tipoarticle
URIhttp://hdl.handle.net/1822/59047
DOI10.1016/j.difgeo.2019.02.003
ISSN0926-2245
e-ISSN1872-6984
Versão da editorahttps://www.sciencedirect.com/science/article/pii/S092622451830069X
Arbitragem científicayes
AcessoclosedAccess
Aparece nas coleções:CMAT - Artigos em revistas com arbitragem / Papers in peer review journals

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