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Apparent horizon mergers in analytic intial data
Abstract
Five years ago Pook-Kolb, Hennigar and Booth published a series of three papers exploring the evolution of apparent horizons and other marginally outer trapped surfaces during a black hole merger. This was seen to be much more intricate than the well-known "pair-of-pants" merger associated with event horizons. In this paper we show that parameter evolutions of Brill-Lindquist-deSitter initial data mimic many of the features of that evolution. Hence, this analytic intial data is a useful testing ground for ideas about marginally outer trapped surface evolution and spacetime geometry during mergers.
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BibTeX
@misc{lopez2026apparent,
title = {{Apparent horizon mergers in analytic intial data}},
author = {Federico Elizondo Lopez and Ivan Booth},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.37938},
eprint = {2610.37938},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.37938},
}
RIS
TY - UNPB
TI - Apparent horizon mergers in analytic intial data
AU - Federico Elizondo Lopez
AU - Ivan Booth
PY - 2026
DA - 2026/10/27
PB - arXiv
DO - 10.48550/arxiv.2610.37938
UR - https://arxiv.org/abs/2610.37938
AB - Five years ago Pook-Kolb, Hennigar and Booth published a series of three papers exploring the evolution of apparent horizons and other marginally outer trapped surfaces during a black hole merger. This was seen to be much more intricate than the well-known "pair-of-pants" merger associated with event horizons. In this paper we show that parameter evolutions of Brill-Lindquist-deSitter initial data mimic many of the features of that evolution. Hence, this analytic intial data is a useful testing ground for ideas about marginally outer trapped surface evolution and spacetime geometry during mergers.
ER -