Showing 2022 · gr-qcShow all

16 papers · 2 filters

gr-qc2022★ 50 cited

Eccentric binary black holes: Comparing numerical relativity and small mass-ratio perturbation theory

Antoni Ramos-Buades, Maarten van de Meent, Harald P. Pfeiffer +4

The modelling of unequal mass binary black hole systems is of high importance to detect and estimate parameters from these systems. Numerical relativity (NR) is well suited to stud…

gr-qc2022★ 15 cited

Multipole moments on the common horizon in a binary-black-hole simulation

Yitian Chen, Prayush Kumar, Neev Khera +8

We construct the covariantly defined multipole moments on the common horizon of an equal-mass, non-spinning, quasicircular binary-black-hole system. We see a strong correlation bet…

gr-qc2022★ 172 cited

Nonlinearities in Black Hole Ringdowns

Keefe Mitman, Macarena Lagos, Leo C. Stein +11

The gravitational wave strain emitted by a perturbed black hole (BH) ringing down is typically modeled analytically using first-order BH perturbation theory. In this Letter we show…

gr-qc2022★ 52 cited

Fixing the BMS frame of numerical relativity waveforms with BMS charges

Keefe Mitman, Leo C. Stein, Michael Boyle +8

The Bondi-van der Burg-Metzner-Sachs (BMS) group, which uniquely describes the symmetries of asymptotic infinity and therefore of the gravitational waves that propagate there, has…

gr-qc2022★ 11 cited

Late-time post-merger modeling of a compact binary: effects of relativity, r-process heating, and treatment of transport effects

Milad Haddadi, Matthew D. Duez, Francois Foucart +8

Detectable electromagnetic counterparts to gravitational waves from compact binary mergers can be produced by outflows from the black hole-accretion disk remnant during the first t…

gr-qc2022★ 80 cited

Quasinormal-mode filters: a new approach to analyze the gravitational-wave ringdown of binary black-hole mergers

Sizheng Ma, Keefe Mitman, Ling Sun +7

We propose two frequency-domain filters to analyze ringdown signals of binary black hole mergers. The first rational filter is constructed based on a set of (arbitrary) quasi-norma…

gr-qc2022★ 5 cited

Success of the small mass ratio approximation during the final orbits of binary black hole simulations

Sergi Navarro Albalat, Aaron Zimmerman, Matthew Giesler +1

Recent studies have shown the surprising effectiveness of the small mass-ratio approximation (SMR) in modeling the relativistic two-body problem even at comparable masses. Up to no…

gr-qc2022★ 15 cited

Particle motion under the conservative piece of the self-force is Hamiltonian

Francisco M. Blanco, Éanna É. Flanagan

We consider the motion of a point particle in a stationary spacetime under the influence of a scalar, electromagnetic or gravitational self-force. We show that the conservative pie…

gr-qc2022

Redshift factor and the small mass-ratio limit in binary black hole simulations

Sergi Navarro Albalat, Aaron Zimmerman, Matthew Giesler +1

We present a calculation of the Detweiler redshift factor in binary black hole simulations based on its relation to the surface gravity. The redshift factor has far-reaching applic…

gr-qc2022★ 25 cited

Gravitational-wave echoes from numerical-relativity waveforms via space-time construction near merging compact objects

Sizheng Ma, Qingwen Wang, Nils Deppe +7

We propose a new approach toward reconstructing the late-time near-horizon geometry of merging binary black holes, and toward computing gravitational-wave echoes from exotic compac…

gr-qc2022★ 52 cited

Surrogate model for gravitational wave signals from non-spinning, comparable- to large-mass-ratio black hole binaries built on black hole perturbation theory waveforms calibrated to numerical relativity

Tousif Islam, Scott E. Field, Scott A. Hughes +6

We present a reduced-order surrogate model of gravitational waveforms from non-spinning binary black hole systems with comparable to large mass-ratio configurations. This surrogate…

gr-qc2022★ 12 cited

Modeling Compact Binary Merger Waveforms Beyond General Relativity

Gabriel S. Bonilla, Prayush Kumar, Saul A. Teukolsky

The parameterized post-Einsteinian framework modifies inspiral waveform models to incorporate effects beyond General Relativity. We extend the existing model into the merger-ringdo…

gr-qc2022★ 54 cited

Targeted large mass ratio numerical relativity surrogate waveform model for GW190814

Jooheon Yoo, Vijay Varma, Matthew Giesler +5

Gravitational wave observations of large mass ratio compact binary mergers like GW190814 highlight the need for reliable, high-accuracy waveform templates for such systems. We pres…

gr-qc2022★ 3 cited

First joint observation by the underground gravitational-wave detector, KAGRA, with GEO600

The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1669

We report the results of the first joint observation of the KAGRA detector with GEO600. KAGRA is a cryogenic and underground gravitational-wave detector consisting of a laser inter…

gr-qc2022★ 37 cited

Search for gravitational waves from Scorpius X-1 with a hidden Markov model in O3 LIGO data

The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1669

Results are presented for a semi-coherent search for continuous gravitational waves from the low-mass X-ray binary Scorpius X-1, using a hidden Markov model (HMM) to allow for spin…

gr-qc2022★ 103 cited

All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO and Advanced Virgo O3 data

The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1667

We present results of an all-sky search for continuous gravitational waves which can be produced by spinning neutron stars with an asymmetry around their rotation axis, using data…