Results 21 to 30 of about 93,562 (275)

Numerical Relativity Injection Infrastructure

, 2017
This document describes the new Numerical Relativity (NR) injection infrastructure in the LIGO Algorithms Library (LAL), which henceforth allows for the usage of NR waveforms as a discrete waveform approximant in LAL.
Harry, Ian W., Pfeiffer, Harald P., Schmidt, Patricia   +2 more
core   +3 more sources

Numerical Relativity as a New Tool for Fundamental Cosmology

Physics, 2022
Advances in our understanding of the origin, evolution, and structure of the universe have long been driven by cosmological perturbation theory, model building, and effective field theory.
Anna Ijjas
doaj   +1 more source

Multimessenger Binary Mergers Containing Neutron Stars: Gravitational Waves, Jets, and γ-Ray Bursts

Frontiers in Astronomy and Space Sciences, 2021
Neutron stars (NSs) are extraordinary not only because they are the densest form of matter in the visible Universe but also because they can generate magnetic fields ten orders of magnitude larger than those currently constructed on earth.
Milton Ruiz, Stuart L. Shapiro, Stuart L. Shapiro, Antonios Tsokaros   +3 more
doaj   +1 more source

The Lagrangian numerical relativity code SPHINCS_BSSN_v1.0

Frontiers in Applied Mathematics and Statistics, 2023
We present version 1.0 of our Lagrangian numerical relativity code SPHINCS_BSSN. This code evolves the full set of Einstein equations, but contrary to other numerical relativity codes, it evolves the matter fluid via Lagrangian particles in the framework
Stephan Rosswog, Stephan Rosswog, Francesco Torsello, Peter Diener, Peter Diener   +4 more
doaj   +1 more source

Numerical relativity beyond astrophysics [PDF]

Reports on Progress in Physics, 2016
Though the main applications of computer simulations in relativity are to astrophysical systems such as black holes and neutron stars, nonetheless there are important applications of numerical methods to the investigation of general relativity as a fundamental theory of the nature of space and time.
openaire   +3 more sources

Gravitational wave extraction and outer boundary conditions by perturbative matching [PDF]

, 1997
We present a method for extracting gravitational radiation from a three-dimensional numerical relativity simulation and, using the extracted data, to provide outer boundary conditions.
A. Abrahams, A. Anderson, A. M. Abrahams, A. M. Abrahams, A. M. Abrahams, A. M. Abrahams, A. M. Abrahams, A. M. Abrahams, A. M. Abrahams, A. M. Abrahams, B. Szilágyi, C. R. Evans, D. Shoemaker, E. Seidel, E. Seidel, F. Saied, F. Zerilli, G. B. Cook, G. C. Fox, J. C. Browne, J. Lenaghan, J. Masso, J. W. York, J. W. York, J. Winicour, K. Camarda, L. E. Kidder, L. Lehner, L. Rezzolla, L. S. Finn, L. Smarr, M. A. Scheel, M. E. Rupright, M. F. Huq, M. H. P. M. van Putten, M. Parashar, M. W. Choptuik, N. T. Bishop, N. T. Bishop, N. T. Bishop, P. Anninos, P. Anninos, P. E. Saylor, P. Laguna, P. Papadopoulos, P. Walker, R. A. Matzner, R. Arnowitt, R. Gómez, R. H. Price, R. L. Marsa, R. R. Correll, S. A. Klasky, S. A. Teukolsky, S. L. Shapiro, S. Mitra, S. R. Brandt, S. Teukolsky, T. Haupt, T. Regge, T. W. Baumgarte, V. Moncrief, W. Landry, Y. Choquet-Bruhat, Y. Choquet-Bruhat   +64 more
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Inhomogeneous cosmology with numerical relativity [PDF]

Physical Review D, 2017
We perform three-dimensional numerical relativity simulations of homogeneous and inhomogeneous expanding spacetimes, with a view towards quantifying non-linear effects from cosmological inhomogeneities. We demonstrate fourth-order convergence with errors less than one part in 10^6 in evolving a flat, dust Friedmann-Lemaitre-Roberston-Walker (FLRW ...
Macpherson, Hayley J, Lasky, Paul D, Price, Daniel J   +2 more
openaire   +3 more sources

Numerical relativity in higher dimensions [PDF]

, 2010
We give a status report on our project targeted at performing numerical simulations of a head-on collision of non-spinning black holes in higher dimensional non-compact space-times.
Andrea Nerozzi, Banks T, Carlos Herdeiro, Eppley K R, Gourgoulhon E, Helvi Witek, Leonardo Gualtieri, Maldacena J M, Miguel Zilhão, Nastase H, Smarr L, Sorkin E, Sorkin E, Ulrich Sperhake, Vitor Cardoso, Witek H, Zilhão M   +16 more
core   +2 more sources

Numerical relativity and asymptotic flatness [PDF]

Classical and Quantum Gravity, 2009
24 pages, to be published in Classical and Quantum ...
Deadman, E., Stewart, J. M.
openaire   +2 more sources

Numerical Simulations of Dark Matter Admixed Neutron Star Binaries

Particles, 2022
Multi-messenger observations of compact binary mergers provide a new way to constrain the nature of dark matter that may accumulate in and around neutron stars.
Mattia Emma, Federico Schianchi, Francesco Pannarale, Violetta Sagun, Tim Dietrich   +4 more
doaj   +1 more source