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The merger of small and large black holes
- We present simulations of binary black-hole mergers in which, after the common outer horizon has formed, the marginally outer trapped surfaces (MOTSs) corresponding to the individual black holes continue to approach and eventually penetrate each other. This has very interesting consequences according to recent results in the theory of MOTSs. Uniqueness and stability theorems imply that two MOTSs which touch with a common outer normal must be identical. This suggests a possible dramatic consequence of the collision between a small and large black hole. If the penetration were to continue to completion, then the two MOTSs would have to coalesce, by some combination of the small one growing and the big one shrinking. Here we explore the relationship between theory and numerical simulations, in which a small black hole has halfway penetrated a large one.
Author details: | Philip Moesta, Lars AnderssonORCiD, Jan Metzger, Bela Szilagyi, Jeffrey Winicour |
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DOI: | https://doi.org/10.1088/0264-9381/32/23/235003 |
ISSN: | 0264-9381 |
ISSN: | 1361-6382 |
Title of parent work (English): | Classical and quantum gravit |
Publisher: | IOP Publ. Ltd. |
Place of publishing: | Bristol |
Publication type: | Article |
Language: | English |
Year of first publication: | 2015 |
Publication year: | 2015 |
Release date: | 2017/03/27 |
Tag: | black holes; numerical relativity; trapped surfaces |
Volume: | 32 |
Issue: | 23 |
Number of pages: | 20 |
Funding institution: | NSF [PHY-1201276]; Sherman Fairchild Foundation; NSF at Caltech [PHY-1440083, AST-1333520, AST-1212170] |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Mathematik |
Peer review: | Referiert |