Black hole collisions in asymptotically de sitter spacetimes

Miguel Zilhão; Vitor Cardoso; Leonardo Gualtieri; Carlos Herdeiro; Ulrich Sperhake; Helvi Witek

doi:10.1007/978-3-319-06761-2_31

Black hole collisions in asymptotically de sitter spacetimes

Miguel Zilhão, Vitor Cardoso, Leonardo Gualtieri, Carlos Herdeiro, Ulrich Sperhake, Helvi Witek

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

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 nonlin-ear 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.

Original language	English (US)
Title of host publication	Relativity and Gravitation - 100 years after Einstein in Prague
Editors	Jiří Bičák, Tomáš Ledvinka
Publisher	Springer
Pages	247-254
Number of pages	8
ISBN (Electronic)	9783319067605
DOIs	https://doi.org/10.1007/978-3-319-06761-2_31
State	Published - 2014
Externally published	Yes
Event	International conference on Relativity and Gravitation, 2012 - Prague, Czech Republic Duration: Jun 25 2012 → Jun 29 2012

Publication series

Name	Springer Proceedings in Physics
Volume	157
ISSN (Print)	0930-8989
ISSN (Electronic)	1867-4941

Conference

Conference	International conference on Relativity and Gravitation, 2012
Country/Territory	Czech Republic
City	Prague
Period	6/25/12 → 6/29/12

ASJC Scopus subject areas

General Physics and Astronomy

Online availability

10.1007/978-3-319-06761-2_31

Library availability

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Black hole collisions in asymptotically de sitter spacetimes. / Zilhão, Miguel; Cardoso, Vitor; Gualtieri, Leonardo et al.
Relativity and Gravitation - 100 years after Einstein in Prague. ed. / Jiří Bičák; Tomáš Ledvinka. Springer, 2014. p. 247-254 (Springer Proceedings in Physics; Vol. 157).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Zilhão, M, Cardoso, V, Gualtieri, L, Herdeiro, C, Sperhake, U & Witek, H 2014, Black hole collisions in asymptotically de sitter spacetimes. in J Bičák & T Ledvinka (eds), Relativity and Gravitation - 100 years after Einstein in Prague. Springer Proceedings in Physics, vol. 157, Springer, pp. 247-254, International conference on Relativity and Gravitation, 2012, Prague, Czech Republic, 6/25/12. https://doi.org/10.1007/978-3-319-06761-2_31

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doi = "10.1007/978-3-319-06761-2_31",

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series = "Springer Proceedings in Physics",

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AU - Zilhão, Miguel

AU - Cardoso, Vitor

AU - Gualtieri, Leonardo

AU - Herdeiro, Carlos

AU - Sperhake, Ulrich

AU - Witek, Helvi

PY - 2014

Y1 - 2014

N2 - 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 nonlin-ear 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.

AB - 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 nonlin-ear 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.

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BT - Relativity and Gravitation - 100 years after Einstein in Prague

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Black hole collisions in asymptotically de sitter spacetimes

Abstract

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