2026-04-13T02:58:53Zhttps://recercat.cat/oai/requestoai:recercat.cat:2445/1814422025-11-21T05:50:03Zcom_2072_1057col_2072_478823col_2072_478917
RECERCAT
author
Andrade, Tomás
author
Emparan García de Salazar, Roberto A.
author
Licht, David
author
Luna i Perelló, Raimon
2021-11-24T17:46:48Z2021-11-24T17:46:48Z2019-04-012021-11-24T17:46:48Z
We argue that cosmic censorship is violated in the collision of two black holes in high spacetime dimension D when the initial total angular momentum is sufficiently large. The two black holes merge and form an unstable bar-like horizon, which grows a neck in its middle that pinches down with diverging curvature. When D is large, the emission of gravitational radiation is strongly suppressed and cannot spin down the system to a stable rotating black hole before the neck grows. The phenomenon is demonstrated using simple numerical simulations of the effective theory in the 1/D expansion. We propose that, even though cosmic censorship is violated, the loss of predictability is small independently of D.
cc-by (c) Andrade, Tomás et al., 2019 https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess
Forats negres (Astronomia)
Astrofísica
Gravetat
Black holes (Astronomy)
Astrophysics
Gravity
Cosmic censorship violation in black hole collisions in higher dimensions
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion