activity
19972023
most citedBlack hole boundaries

267 citations · 1.6k across the 52 of their papers we have counts for

collaborators

52 papers

gr-qc2023★ 3 cited

Marginally Outer Trapped Tori in Black Hole Spacetimes

Kam To Billy Sievers, Liam Newhook, Sarah Muth +3

During a binary black hole merger, multiple intermediary marginally outer trapped tubes connect the initial pair of apparent horizons with the final (single) apparent horizon. The…

gr-qc2023★ 9 cited

Symmetry and instability of marginally outer trapped surfaces

Ivan Booth, Graham Cox, Juan Margalef-Bentabol

We consider an initial data set having a continuous symmetry and a marginally outer trapped surface (MOTS) that is not preserved by this symmetry. We show that such a MOTS is unsta…

physics.class-ph2023★ 1 cited

What is a degree of freedom? Configuration spaces and their topology

Juan Margalef-Bentabol, Leigh Herman, Ivan Booth

Understanding degrees of freedom in classical mechanics is fundamental to characterizing physical systems. Counting them is usually easy, especially if we can assign them a clear m…

gr-qc2022★ 7 cited

Exotic marginally outer trapped surfaces in rotating spacetimes of any dimension

Ivan Booth, Kam To Billy Chan, Robie A. Hennigar +2

The recently developed MOTSodesic method for locating marginally outer trapped surfaces was effectively restricted to non-rotating spacetimes. In this paper we extend the method to…

gr-qc2021

The Interior MOTSs of Spherically Symmetric Black Holes

Robie A. Hennigar, Kam To Billy Chan, Liam Newhook +1

There are notable similarities between the marginally outer trapped surfaces (MOTSs) present in the interior of a binary black hole merger and those present in the interior of the…

gr-qc2021★ 26 cited

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

Daniel Pook-Kolb, Ivan Booth, Robie A. Hennigar

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 hori…