no code implementations • 12 Feb 2021 • Sizheng Ma, Matthew Giesler, Mark Scheel, Vijay Varma
The new spatial coordinate system, which we refer to as superposed modified harmonic (SMH), is characterized by a continuous parameter -- Kerr-Schild and harmonic spatial coordinates are only two special cases of this new gauge.
General Relativity and Quantum Cosmology
no code implementations • 30 Sep 2020 • Afura Taylor, Vijay Varma
We present a surrogate model for the peak luminosity that is directly trained on numerical relativity simulations of precessing binary black holes.
General Relativity and Quantum Cosmology
no code implementations • 2 Feb 2020 • Vijay Varma, Maximiliano Isi, Sylvia Biscoveanu
In generic binary black hole mergers, the loss of linear momentum imparts a recoil velocity, or a "kick", to the remnant black hole.
General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena
2 code implementations • 22 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
2 code implementations • 9 Apr 2019 • Michael Boyle, Daniel Hemberger, Dante A. B. Iozzo, Geoffrey Lovelace, Serguei Ossokine, Harald P. Pfeiffer, Mark A. Scheel, Leo C. Stein, Charles J. Woodford, Aaron B. Zimmerman, Nousha Afshari, Kevin Barkett, Jonathan Blackman, Katerina Chatziioannou, Tony Chu, Nicholas Demos, Nils Deppe, Scott E. Field, Nils L. Fischer, Evan Foley, Heather Fong, Alyssa Garcia, Matthew Giesler, Francois Hebert, Ian Hinder, Reza Katebi, Haroon Khan, Lawrence E. Kidder, Prayush Kumar, Kevin Kuper, Halston Lim, Maria Okounkova, Teresita Ramirez, Samuel Rodriguez, Hannes R. Rüter, Patricia Schmidt, Bela Szilagyi, Saul A. Teukolsky, Vijay Varma, Marissa Walker
Accurate models of gravitational waves from merging black holes are necessary for detectors to observe as many events as possible while extracting the maximum science.
General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena
no code implementations • 19 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
1 code implementation • 24 Sep 2018 • Vijay Varma, Davide Gerosa, François Hébert, Leo C. Stein, Hao Zhang
We present accurate fits for the remnant properties of generically precessing binary black holes, trained on large banks of numerical-relativity simulations.
General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena
