# Ultimate fate of apparent horizons during a binary black hole merger. I. Locating and understanding axisymmetric marginally outer trapped surfaces

@article{Booth2021UltimateFO, title={Ultimate fate of apparent horizons during a binary black hole merger. I. Locating and understanding axisymmetric marginally outer trapped surfaces}, author={Ivan Booth and Robie A. Hennigar and Daniel Pook-Kolb}, journal={Physical Review D}, year={2021} }

Ivan Booth, Robie A. Hennigar, 2, 3 and Daniel Pook-Kolb 5 Department of Mathematics and Statistics, Memorial University of Newfoundland, St. John’s, Newfoundland and Labrador, A1C 5S7, Canada Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario, Canada, N2L 3G1 Department of Physics and Computer Science, Wilfrid Laurier University, Waterloo, Ontario, Canada N2L 3C5 Max-Planck-Institut für Gravitationsphysik (Albert Einstein Institute), Callinstr. 38, 30167 Hannover…

## 6 Citations

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

- PhysicsPhysical Review D
- 2021

Daniel Pook-Kolb, 2 Ivan Booth, and Robie A. Hennigar 4, 5 Max-Planck-Institut für Gravitationsphysik (Albert Einstein Institute), Callinstr. 38, 30167 Hannover, Germany Leibniz Universität Hannover,…

### Tidal deformation of dynamical horizons in binary black hole mergers

- PhysicsPhysical Review D
- 2022

Vaishak Prasad, Anshu Gupta, Sukanta Bose, 2 and Badri Krishnan 4, 5 Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411 007, India Department of Physics and…

### The Interior MOTSs of Spherically Symmetric Black Holes

- Environmental Science
- 2021

Robie A. Hennigar, 2, 3 Kam To Billy Chan, Liam Newhook, and Ivan Booth Department of Mathematics and Statistics, Memorial University, St. John’s, Newfoundland and Labrador, A1C 5S7, Canada…

### What Happens to Apparent Horizons in a Binary Black Hole Merger?

- PhysicsPhysical review letters
- 2021

The fate of the two original apparent horizons are resolved during the head-on merger of two nonspinning black holes and it is shown that, following the appearance of the outer common horizon and subsequent interpenetration, they continue to exist for a finite period of time before they are individually annihilated by unstable marginally outer trapped surfaces (MOTSs).

### Horizon area bound and MOTS stability in locally rotationally symmetric solutions

- Mathematics
- 2022

In this paper, we study the stability of marginally outer trapped surfaces (MOTS), foliating horizons of the form r = X ( τ ), embedded in locally rotationally symmetric class II perfect ﬂuid…

### A Pair of Pants for the Apparent Horizon

- Physics
- 2021

Daniel Pook-Kolb,1, 2 Robie A. Hennigar,3, 4, 5 and Ivan Booth3 1Max-Planck-Institut für Gravitationsphysik (Albert Einstein Institute), Callinstr. 38, 30167 Hannover, Germany 2Leibniz Universität…

## References

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

- PhysicsPhysical Review D
- 2021

Daniel Pook-Kolb, 2 Ivan Booth, and Robie A. Hennigar 4, 5 Max-Planck-Institut für Gravitationsphysik (Albert Einstein Institute), Callinstr. 38, 30167 Hannover, Germany Leibniz Universität Hannover,…

### Dynamical horizons in binary black hole mergers

- Physics
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Marginally outer trapped surfaces (MOTSs) are the main tool in numerical relativity to infer properties of black holes in simulations of highly dynamical systems. On the one hand, the present work…

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We study in detail the dynamics and stability of marginally trapped surfaces during a binary black hole merger. This is the second in a two-part study. The first part studied the basic geometric…

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- PhysicsPhysical review letters
- 2019

Strong numerical evidence is found for a new phenomenon in a binary black hole spacetime, namely, the merger of marginally outer trapped surfaces (MOTSs), and a possibility of proving the Penrose inequality mathematically for generic astrophysical binary back hole configurations is suggested.

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We present numerical simulations of a rotating black hole distorted by a pulse of ingoing gravitational radiation. For strong pulses, we find up to five concentric marginally outer trapped surfaces.…

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We investigate the generic behaviour of marginally trapped tubes (roughly time-evolved apparent horizons) using simple, spherically symmetric examples of dust and scalar field collapse/accretion onto…

### Horizons in a binary black hole merger I: Geometry and area increase

- Physics
- 2020

Recent advances in numerical relativity have revealed how marginally trapped surfaces behave when black holes merge. It is now known that interesting topological features emerge during the merger,…

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- 2020

We study the open and closed axisymmetric marginally outer trapped surfaces contained in leaves of constant Painleve-Gullstrand time for Schwarzschild spacetimes. We identify a family of closed MOTS…

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- Computer SciencePhysical Review D
- 2019

This paper confirms the merger scenario and demonstrates the existence of self-intersecting MOTSs formed in the immediate aftermath of the merger, and details further improvements in the numerical methods for locating Motss.