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GR: Fachverband Gravitation und Relativitätstheorie

GR 16: Numerische Relativitätstheorie

GR 16.3: Vortrag

Donnerstag, 18. März 2010, 18:05–18:25, JUR K

Phase space of eccentric black hole binaries — •Roman Gold and Bernd Brügmann — Theoretisch Physikalisches Institut, FSU Jena, Germany

The possibility of gravitational wave detections within the near future relies on our understanding of the corresponding sources. Apart from the mere detection there is the additional challenge of how to derive the dynamics of the source from it's observed radiation properties. In terms of a black hole binary it is well-known that parameter estimation becomes much more accurate when the orbits are eccentric. I show recent results on the phase space trajectories as well as radiation properties of two black holes on eccentric orbits computed from fully general relativistic simulations. The data set involves so-called zoom-whirl orbits and hyperbolic encounters. I demonstrate new results on a phase space approach that allows one to qualitatively understand on physical grounds why certain eccentric orbital configurations radiate more intense than others.