Initial data transients in binary black hole evolutions

2011/01/28 by Nigel T. Bishop, Nigel Bishop, Denis Pollney +1 · 22 citations
Physics and Astronomy · #Astrophysics #Binary black hole #Binary number #Black Holes and Theoretical Physics #Black hole (networking) #Cosmology and Gravitation Theories #Gravitational wave #Physics #Pulsars and Gravitational Waves Research #Theoretical physics #gr-qc

paper · pdf · doi:10.1088/0264-9381/28/15/155019

published in Classical and Quantum Gravity 28(15), 155019 (IOP Publishing) · 18 pages, 4 figures

arxiv created 2011/01/28 · openalex publication_date 2011/07/04 · arxiv updated 2015/03/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

We describe a method for initializing characteristic evolutions of the Einstein equations using a linearized solution corresponding to purely outgoing radiation. This allows for a more consistent application of the characteristic (null cone) techniques for invariantly determining the gravitational radiation content of numerical simulations. In addition, we are able to identify the ingoing radiation contained in the characteristic initial data, as well as in the initial data of the 3 + 1 simulation. We find that each component leads to a small but long lasting (several hundred mass scales) transient in the measured outgoing gravitational waves.

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