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- W2108255777 abstract "Nonlinear dynamics in cosmological backgrounds has the potential to teach us immensely about our Universe, and also to serve as prototype for nonlinear processes in generic curved spacetimes. Here we report on dynamical evolutions of black holes in asymptotically de Sitter spacetimes. We focus on the head-on collision of equal mass binaries and for the first time 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." @default.
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- W2108255777 date "2012-05-23" @default.
- W2108255777 modified "2023-10-18" @default.
- W2108255777 title "Dynamics of black holes in de Sitter spacetimes" @default.
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- W2108255777 doi "https://doi.org/10.1103/physrevd.85.104039" @default.
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