Two physical characteristics of numerical apparent horizons

Author: Booth, I

Source: Canadian Journal of Physics, Volume 86, Number 4, April 2008 , pp. 669-673(5)

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Abstract:

This article translates some recent results on quasilocal horizons into the language of (3 + 1) general relativity to make them more useful to numerical relativists. In particular, quantities are described that characterize how quickly an apparent horizon is evolving and how close it is to either equilibrium or extremality.PACS Nos.: 04.20.Cv, 04.25.Dm, 04.70.Bw

Nous traduisons ici certains résultats récents sur les horizons quasilocaux dans la langue de la relativité générale en (3 + 1), de façon à les rendre plus utiles pour les calculs reativistes numériques. Nous décrivons en particulier des quantités qui caractérisent la vitesse avec laquelle un horizon apparent évolue et jusqu'à quel point il est près de l'équilibre ou de l'extrémalité.[Traduit par la Rédaction]

Document Type: Research article

Publication date: 2008-04-01

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