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  Ultimate fate of apparent horizons during a binary black hole merger. II. The vanishing of apparent horizons

Pook-Kolb, D., Booth, I., & Hennigar, R. A. (2021). Ultimate fate of apparent horizons during a binary black hole merger. II. The vanishing of apparent horizons. Physical Review D, 104(8): 084084. doi:10.1103/PhysRevD.104.084084.

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Other : Ultimate fate of apparent horizons during a binary black hole merger II: Horizons weaving back and forth in time

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 Creators:
Pook-Kolb, Daniel1, Author              
Booth, Ivan, Author
Hennigar, Robie A., Author
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc
 Abstract: In this second part of a two-part paper, we discuss numerical simulations of a head-on merger of two non-spinning black holes. We resolve the fate of the original two apparent horizons by showing that after intersecting, their world tubes "turn around" and continue backwards in time. Using the method presented in the first paper to locate these surfaces, we resolve several such world tubes evolving and connecting through various bifurcations and annihilations. This also draws a consistent picture of the full merger in terms of apparent horizons, or more generally, marginally outer trapped surfaces (MOTSs). The MOTS stability operator provides a natural mechanism to identify MOTSs which should be thought of as black hole boundaries. These are the two initial ones and the final remnant. All other MOTSs lie in the interior and are neither stable nor inner trapped.

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 Dates: 2021-04-222021
 Publication Status: Published in print
 Pages: 23 pages, 23 figures
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 2104.11344
DOI: 10.1103/PhysRevD.104.084084
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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : American Physical Society
Pages: - Volume / Issue: 104 (8) Sequence Number: 084084 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: https://pure.mpg.de/cone/journals/resource/111088197762258