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Black Hole Collisions in Asymptotically de Sitter Spacetimes

Zilhão, Miguel and Cardoso, Vitor and Gualtieri, Leonardo and Herdeiro, Carlos and Sperhake, Ulrich and Witek, Helvi (2014) Black Hole Collisions in Asymptotically de Sitter Spacetimes. In: Relativity and Gravitation: 100 Years after Einstein in Prague. Springer Proceedings in Physics. No.157. Springer , Cham, Switzerland, pp. 247-254. ISBN 978-3-319-06760-5.

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We report on the first dynamical evolutions of black holes in asymptotically de Sitter spacetimes. We focus on the head-on collision of equal mass binaries and compare analytical and perturbative methods with full blown nonlinear simulations. Our results include an accurate determination of the merger/scatter transition (consequence of an expanding background) for small mass binaries and a test of the Cosmic Censorship conjecture, for large mass binaries. We observe that, even starting from small separations, black holes in large mass binaries eventually lose causal contact, in agreement with the conjecture.

Item Type:Book Section
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Sperhake, Ulrich0000-0002-3134-7088
Additional Information:© 2014 Springer International Publishing Switzerland. First Online: 07 June 2014.
Series Name:Springer Proceedings in Physics
Issue or Number:157
Record Number:CaltechAUTHORS:20170706-085838066
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:78796
Deposited By: Tony Diaz
Deposited On:06 Jul 2017 22:12
Last Modified:15 Nov 2021 17:43

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