Models of disks and other self-gravitating structures in general relativity / Modelos de discos e outras estruturas auto-gravitantes em relatividade geral

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

Exact solutions of Einstein field equations that represent space-times with disklike matter distributions are constructed using the inverse method (image method). These solutions include static thin perfect uid disks with and without halos, static thin charged perfect uid disks and models of thin charged dust disks. New solutions in various coordinate systems that represent static thick disks with constant thickness are also studied. A particular form of the isotropic metric in cylindrical coordinates is employed to obtain relativistic versions of Newtonian potential-density pairs commonly used in Galactic Astronomy. A simplified, although exact, relativistic model of an active galactic nuclei is also presented. Finally, some Newtonian potential-density pairs obtained from the Newtonian multipolar expansion that generalize known pairs are studied

ASSUNTO(S)

exact solutions relatividade geral (fisica) discos astrofisicos soluções exatas general relativity (physics) astrophysical disks

ACESSO AO ARTIGO

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