Showing 2024 · gr-qcShow all

16 papers · 2 filters

gr-qc2024★ 14 cited

Late-time tails in nonlinear evolutions of merging black holes

Marina De Amicis, Hannes Rüter, Gregorio Carullo +17

We uncover late-time gravitational-wave tails in fully nonlinear 3+1 dimensional numerical relativity simulations of merging black holes, using the highly accurate SpEC code. We ac…

gr-qc2024★ 57 cited

Accurate waveforms for eccentric, aligned-spin binary black holes: The multipolar effective-one-body model SEOBNRv5EHM

Aldo Gamboa, Alessandra Buonanno, Raffi Enficiaud +9

The measurement of orbital eccentricity in gravitational-wave (GW) signals will provide unique insights into the astrophysical origin of binary systems, while ignoring eccentricity…

gr-qc2024★ 14 cited

Merging black holes with Cauchy-characteristic matching: Computation of late-time tails

Sizheng Ma, Mark A. Scheel, Jordan Moxon +5

Cauchy-characteristic matching (CCM) is a numerical-relativity technique that solves Einstein's equations on an effectively infinite computational domain, thereby eliminating syste…

gr-qc2024★ 34 cited

Overtones and Nonlinearities in Binary Black Hole Ringdowns

Matthew Giesler, Sizheng Ma, Keefe Mitman +11

Using high-accuracy numerical relativity waveforms, we confirm the presence of numerous overtones of the , quasinormal mode early in the ringdown of binary black hole…

gr-qc2024★ 7 cited

Echoes from beyond: Detecting gravitational-wave quantum imprints with LISA

Nils Deppe, Lavinia Heisenberg, Henri Inchauspé +7

We assess the prospects for detecting gravitational wave echoes arising due to the quantum nature of black hole horizons with LISA. In a recent proposal, Bekenstein's black hole ar…

gr-qc2024★ 3 cited

Relieving scale disparity in binary black hole simulations

Nikolas A. Wittek, Leor Barack, Harald P. Pfeiffer +7

Worldtube excision is a method of reducing computational burden in Numerical Relativity simulations of binary black holes in situations where there is a good analytical model of th…

gr-qc2024★ 2 cited

Approximate helical symmetry in compact binaries

Aniket Khairnar, Leo C. Stein, Michael Boyle

The inspiral of a circular, non-precessing binary exhibits an approximate helical symmetry. The effects of eccentricity, precession, and radiation reaction break the exact symmetry…

gr-qc2024★ 12 cited

Parameter control for eccentric, precessing binary black hole simulations with SpEC

Taylor Knapp, Katerina Chatziioannou, Harald Pfeiffer +2

Numerical relativity simulations of merging black holes provide the most accurate description of the binary dynamics and the emitted gravitational wave signal. However, practical c…

gr-qc2024★ 10 cited

Simulating binary black hole mergers using discontinuous Galerkin methods

Geoffrey Lovelace, Kyle C. Nelli, Nils Deppe +28

Binary black holes are the most abundant source of gravitational-wave observations. Gravitational-wave observatories in the next decade will require tremendous increases in the acc…

gr-qc2024★ 7 cited

Einstein-Klein-Gordon system via Cauchy-characteristic evolution: Computation of memory and ringdown tail

Sizheng Ma, Kyle C. Nelli, Jordan Moxon +5

Cauchy-characteristic evolution (CCE) is a powerful method for accurately extracting gravitational waves at future null infinity. In this work, we extend the previously implemented…

gr-qc2024★ 17 cited

High-Precision Ringdown Surrogate Model for Non-Precessing Binary Black Holes

Lorena Magaña Zertuche, Leo C. Stein, Keefe Mitman +11

Highly precise and robust waveform models are required as improvements in detector sensitivity enable us to test general relativity with more precision than ever before. In this wo…

gr-qc2024

Stimulated absorption of single gravitons: First light on quantum gravity

Victoria Shenderov, Mark Kanex, Thomas Beitel +3

In a recent work we showed that the detection of the exchange of a single graviton between a massive quantum resonator and a gravitational wave can be achieved. Key to this ability…

gr-qc2024★ 14 cited

Scalarization of isolated black holes in scalar Gauss-Bonnet theory in the fixing-the-equations approach

Guillermo Lara, Harald P. Pfeiffer, Nikolas A. Wittek +6

One of the most promising avenues to perform numerical evolutions in theories beyond General Relativity is the fixing-the-equations approach, a proposal in which new ``driver'' equ…

gr-qc2024★ 9 cited

Stability of hypermassive neutron stars with realistic rotation and entropy profiles

Nishad Muhammed, Matthew D. Duez, Pavan Chawhan +7

Binary neutron star mergers produce massive, hot, rapidly differentially rotating neutron star remnants; electromagnetic and gravitational wave signals associated with the subseque…

gr-qc2024★ 10 cited

Optimizing post-Newtonian parameters and fixing the BMS frame for numerical-relativity waveform hybridizations

Dongze Sun, Michael Boyle, Keefe Mitman +4

Numerical relativity (NR) simulations of binary black holes provide precise waveforms, but are typically too computationally expensive to produce waveforms with enough orbits to co…

gr-qc2024★ 19 cited

Striking the right tone: toward a self-consistent framework for measuring black hole ringdowns

Teagan A. Clarke, Maximiliano Isi, Paul D. Lasky +9

The ringdown portion of a binary black hole merger consists of a sum of modes, each containing an infinite number of tones that are exponentially damped sinusoids. In principle, th…