The 3-dimensional einstein-klein-gordon system in characteristic numerical relativity.
Fecha
2005-09-18Palabras Clave
Distribuciones autogravitantes, Relatividad general, Cosmología cuánticaPhysics, General relativity, Quantum cosmology
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The 3-dimensional einstein-klein-gordon system in characteristic numerical relativity.
(Barreto Acevedo, Willians; Da Silva, A.; Gómez, R.; Lehner, R.; Rosales, L.; Winicour, J..)
Abstract
We incorporate a massless scalar field into a 3-dimensional code for the characteristic evolution
of the gravitational field. The extended 3-dimensional code for the Einstein.Klein.Gordon system
is calibrated to be second order convergent. It provides an accurate calculation of the gravitational
and scalar radiation at infinity. As an application, we simulate the fully nonlinear evolution of an
asymmetric scalar pulse of ingoing radiation propagating toward an interior Schwarzschild black
hole and compute the backscattered scalar and gravitational outgoing radiation patterns. The
amplitudes of the scalar and gravitational outgoing radiation modes exhibit the predicted power
law scaling with respect to the amplitude of the initial data. For the scattering of an axisymmetric
scalar field, the final ring down matches the complex frequency calculated perturbatively for the
l = 2 quasinormal mode.
PACS numbers: 04.40.-b, 04.25.Dm, 04.40.Nr, 04.40.Dg
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Información Adicional
Correo Electrónico | wbarreto@ula.ve |
Editor | SABER ULA |
Idioma | Inglés |