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A numerical study of Penrose-like inequalitiesin a family of axially symmetric initial data

Published online by Cambridge University Press:  30 September 2008

J.L. Jaramillo
Affiliation:
Instituto de Astrofísica de Andalucía, CSIC, Apartado Postal 3004, Granada 18080, Spain Laboratoire de l'Univers et de ses Théories, UMR 8102 du CNRS, Observatoire de Paris, 92195 Meudon Cedex, France
N. Vasset
Affiliation:
Laboratoire de l'Univers et de ses Théories, UMR 8102 du CNRS, Observatoire de Paris, 92195 Meudon Cedex, France
M. Ansorg
Affiliation:
Max-Planck-Institut für Gravitationsphysik, Albert-Einstein-Institut, Am Mühlenberg 1, 14476 Golm, Germany
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Abstract

Our current picture of black hole gravitational collapse relies on two assumptions: i) the resulting singularity is hidden behind an event horizon – weak cosmic censorship conjecture – and ii) spacetime eventually settles down to a stationarity state. In this setting, it follows that the minimal area containing an apparent horizon is bound by the square of the total ADM mass (Penrose inequality conjecture). Following Dain et al. (2002), we construct numerically a family of axisymmetric initial data with one or several marginally trapped surfaces. Penrose and related geometric inequalities are discused for these data. As a by-product, it is shown how Penrose inequality can be used as a diagnosis for an apparent horizon finder numerical routine.

Type
Research Article
Copyright
© EAS, EDP Sciences, 2008

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