Search Results for author: Harald P. Pfeiffer

Found 9 papers, 5 papers with code

Surrogate models for precessing binary black hole simulations with unequal masses

2 code implementations22 May 2019 Vijay Varma, Scott E. Field, Mark A. Scheel, Jonathan Blackman, Davide Gerosa, Leo C. Stein, Lawrence E. Kidder, Harald P. Pfeiffer

The final black hole model, \RemnantModel, models the mass, spin, and recoil kick velocity of the remnant black hole.

General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena

Surrogate model of hybridized numerical relativity binary black hole waveforms

no code implementations19 Dec 2018 Vijay Varma, Scott E. Field, Mark A. Scheel, Jonathan Blackman, Lawrence E. Kidder, Harald P. Pfeiffer

We present NRHybSur3dq8, a surrogate model for hybridized nonprecessing numerical relativity waveforms, that is valid for the entire LIGO band (starting at $20~\text{Hz}$) for stellar mass binaries with total masses as low as $2. 25\, M_{\odot}$.

General Relativity and Quantum Cosmology

Constraining the parameters of GW150914 & GW170104 with numerical relativity surrogates

1 code implementation24 Aug 2018 Prayush Kumar, Jonathan Blackman, Scott E. Field, Mark Scheel, Chad R. Galley, Michael Boyle, Lawrence E. Kidder, Harald P. Pfeiffer, Bela Szilagyi, Saul A. Teukolsky

In this paper we demonstrate the viability of these surrogate models as reliable parameter estimation tools, and show that within a fully Bayesian framework surrogates can help us extract more information from gravitational wave observations than traditional models.

General Relativity and Quantum Cosmology 83C57, 83C35 J.2

A Numerical Relativity Waveform Surrogate Model for Generically Precessing Binary Black Hole Mergers

1 code implementation19 May 2017 Jonathan Blackman, Scott E. Field, Mark A. Scheel, Chad R. Galley, Christian D. Ott, Michael Boyle, Lawrence E. Kidder, Harald P. Pfeiffer, Béla Szilágyi

A generic, non-eccentric binary black hole (BBH) system emits gravitational waves (GWs) that are completely described by 7 intrinsic parameters: the black hole spin vectors and the ratio of their masses.

General Relativity and Quantum Cosmology

An improved effective-one-body model of spinning, nonprecessing binary black holes for the era of gravitational-wave astrophysics with advanced detectors

no code implementations11 Nov 2016 Alejandro Bohé, Lijing Shao, Andrea Taracchini, Alessandra Buonanno, Stanislav Babak, Ian W. Harry, Ian Hinder, Serguei Ossokine, Michael Pürrer, Vivien Raymond, Tony Chu, Heather Fong, Prayush Kumar, Harald P. Pfeiffer, Michael Boyle, Daniel A. Hemberger, Lawrence E. Kidder, Geoffrey Lovelace, Mark A. Scheel, Béla Szilágyi

After extrapolation of the calibrated model to arbitrary mass ratios and spins, the (dominant-mode) EOBNR waveforms have faithfulness --- at design Advanced-LIGO sensitivity --- above $99\%$ against all the NR waveforms, including 16 additional waveforms used for validation, when maximizing only on initial phase and time.

General Relativity and Quantum Cosmology

On the accuracy and precision of numerical waveforms: Effect of waveform extraction methodology

no code implementations21 Dec 2015 Tony Chu, Heather Fong, Prayush Kumar, Harald P. Pfeiffer, Michael Boyle, Daniel A. Hemberger, Lawrence E. Kidder, Mark A. Scheel, Bela Szilagyi

We find that numerical truncation error, error due to gravitational wave extraction, and errors due to the finite length of the numerical waveforms are of similar magnitude, with gravitational wave extraction errors somewhat dominating at noise-weighted mismatches of $\sim 3\times 10^{-4}$.

General Relativity and Quantum Cosmology

Gravitational-wave modes from precessing black-hole binaries

1 code implementation15 Sep 2014 Michael Boyle, Lawrence E. Kidder, Serguei Ossokine, Harald P. Pfeiffer

For strongly precessing systems, it accounts for at least 3% amplitude modulation for binaries in the sensitivity band of ground-based gravitational-wave detectors, and can exceed 50% for massive systems.

General Relativity and Quantum Cosmology

Effective-one-body model for black-hole binaries with generic mass ratios and spins

no code implementations11 Nov 2013 Andrea Taracchini, Alessandra Buonanno, Yi Pan, Tanja Hinderer, Michael Boyle, Daniel A. Hemberger, Lawrence E. Kidder, Geoffrey Lovelace, Abdul H. Mroue, Harald P. Pfeiffer, Mark A. Scheel, Bela Szilagyi, Nicholas W. Taylor, Anil Zenginoglu

Gravitational waves emitted by black-hole binary systems have the highest signal-to-noise ratio in LIGO and Virgo detectors when black-hole spins are aligned with the orbital angular momentum and extremal.

General Relativity and Quantum Cosmology

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