M
Michael Koppitz
Researcher at Goddard Space Flight Center
Publications - 20
Citations - 3143
Michael Koppitz is an academic researcher from Goddard Space Flight Center. The author has contributed to research in topics: Numerical relativity & Black hole. The author has an hindex of 15, co-authored 18 publications receiving 2929 citations. Previous affiliations of Michael Koppitz include Max Planck Society & Albert Einstein Institution.
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Journal ArticleDOI
Gravitational-Wave Extraction from an Inspiraling Configuration of Merging Black Holes
TL;DR: The approach follows the "puncture" treatment of black holes, but utilizing a new gauge condition which allows the black holes to move successfully through the computational domain, and applies these techniques to an inspiraling binary, modeling the radiation generated during the final plunge and ringdown.
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Gauge conditions for long-term numerical black hole evolutions without excision
Miguel Alcubierre,Miguel Alcubierre,Bernd Brügmann,Bernd Brügmann,Peter Diener,Michael Koppitz,Denis Pollney,Edward Seidel,Edward Seidel,Ryoji Takahashi +9 more
TL;DR: In this paper, the authors extend previous work on 3D black hole excision to the case of distorted black holes, with a variety of dynamic gauge conditions that are able to respond naturally to the spacetime dynamics.
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Getting a Kick Out of Numerical Relativity
John G. Baker,Joan Centrella,Dae-Il Choi,Dae-Il Choi,Michael Koppitz,James R. van Meter,M. Coleman Miller,M. Coleman Miller +7 more
TL;DR: In this article, the authors reported the first accurate numerical calculation of the net kick for two nonspinning black holes in a 1.5:1 mass ratio, which is expected based on analytic considerations to give a significant fraction of the maximum possible recoil.
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A phenomenological template family for black-hole coalescence waveforms
P. Ajith,S. Babak,Yi Chen,Martin Hewitson,Badri Krishnan,James Whelan,Bernd Brügmann,Peter Diener,José A. González,Mark Hannam,Sascha Husa,Michael Koppitz,Denis Pollney,Luciano Rezzolla,Luciano Rezzolla,Lucía Santamaría,Alicia M. Sintes,Ulrich Sperhake,Jonathan Thornburg,Jonathan Thornburg +19 more
TL;DR: In this article, a phenomenological family of waveforms which can model the inspiral, merger and ring-down stages of black-hole coalescence was proposed, and a template bank was constructed using this waveform family.
Journal ArticleDOI
How to move a black hole without excision: Gauge conditions for the numerical evolution of a moving puncture
TL;DR: In this article, the authors present analytic considerations which suggest certain gauge choices, and numerically demonstrate their efficacy in evolving a single moving puncture black hole, which is critically undergirded by a careful choice of gauge.