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19912026
Showing 2023 · gr-qcShow all

15 papers · 2 filters

gr-qc2023★ 14 cited

Linear vs. nonlinear modeling of black hole ringdowns

Yi Qiu, Xisco Jiménez Forteza, Pierre Mourier

The ringdown (RD) phase of gravitational waves is of prime interest for testing general relativity (GR). The modelling of the linear quasi-normal modes (QNMs) within the Kerr spect…

gr-qc2023★ 6 cited

Likelihood for a Network of Gravitational-Wave Detectors with Correlated Noise

Francesco Cireddu, Milan Wils, Isaac C. F. Wong +3

The Einstein Telescope faces a critical data analysis challenge with correlated noise, often overlooked in current parameter estimation analyses. We address this issue by presentin…

gr-qc2023★ 2 cited

Physical scale adiabatic regularization in cosmological spacetimes

Antonio Ferreiro, Samuel Monin, Francisco Torrenti

We develop a new regularization method for the stress-energy tensor and the two-point function of free quantum scalar fields propagating in cosmological spacetimes. We proceed by e…

gr-qc2023★ 9 cited

Template bank to search for exotic gravitational wave signals from astrophysical compact binaries

Abhishek Sharma, Soumen Roy, Anand S. Sengupta

Modeled searches of gravitational wave signals from compact binary mergers rely on template waveforms determined by the theory of general relativity (GR). Once a signal is detected…

gr-qc2023★ 13 cited

Prompt sky localization of compact binary sources using a meshfree approximation

Lalit Pathak, Sanket Munishwar, Amit Reza +1

The number of gravitational wave signals from the merger of compact binary systems detected in the network of advanced LIGO and Virgo detectors is expected to increase considerably…

gr-qc2023★ 10 cited

Explaining Large Electromagnetic Logarithms from Loops of Inflationary Gravitons

D. Glavan, S. P. Miao, T. Prokopec +1

Recent progress on nonlinear sigma models on de Sitter background has permitted the resummation of large inflationary logarithms by combining a variant of Starobinsky's stochastic…

gr-qc2023★ 43 cited

Nuclear physics constraints from binary neutron star mergers in the Einstein Telescope era

Francesco Iacovelli, Michele Mancarella, Chiranjib Mondal +5

The next generation of ground-based gravitational-wave detectors, Einstein Telescope (ET) and Cosmic Explorer (CE), present a unique opportunity to put constraints on dense matter,…

gr-qc2023★ 45 cited

Nonlinear ringdown at the black hole horizon

Neev Khera, Ariadna Ribes Metidieri, Béatrice Bonga +6

The gravitational waves emitted by a perturbed black hole ringing down are well described by damped sinusoids, whose frequencies are those of quasinormal modes. Typically, first-or…

gr-qc2023★ 54 cited

Follow-up Analyses to the O3 LIGO-Virgo-KAGRA Lensing Searches

Justin Janquart, Mick Wright, Srashti Goyal +28

Along their path from source to observer, gravitational waves may be gravitationally lensed by massive objects. This results in distortions of the observed signal which can be used…

gr-qc2023★ 23 cited

The Return of GOLUM: Improving Distributed Joint Parameter Estimation for Strongly-Lensed Gravitational Waves

Justin Janquart, K. Haris, Otto A. Hannuksela +1

Owing to the forecasted improved sensitivity of ground-based gravitational-wave detectors, new research avenues will become accessible. This is the case for gravitational-wave stro…

gr-qc2023★ 402 cited

Science with the Einstein Telescope: a comparison of different designs

Marica Branchesi, Michele Maggiore, David Alonso +73

The Einstein Telescope (ET), the European project for a third-generation gravitational-wave detector, has a reference configuration based on a triangular shape consisting of three…

gr-qc2023★ 331 cited

Open data from the third observing run of LIGO, Virgo, KAGRA and GEO

The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1741

The global network of gravitational-wave observatories now includes five detectors, namely LIGO Hanford, LIGO Livingston, Virgo, KAGRA, and GEO 600. These detectors collected data…

gr-qc2023★ 17 cited

Dipolar tidal effects in gravitational waves from scalarized black hole binary inspirals in quadratic gravity

Iris van Gemeren, Banafsheh Shiralilou, Tanja Hinderer

Gravitational waves (GWs) from merging binary black holes (BHs) enable unprecedented tests of gravitational theories beyond Einstein's General Relativity (GR) in highly nonlinear,…

gr-qc2023★ 33 cited

First search for ultralight dark matter with a space-based gravitational-wave antenna: LISA Pathfinder

Andrew L. Miller, Luis Mendes

We present here results from the first-ever search for dark photon dark matter that could have coupled to baryons in LISA Pathfinder, the technology demonstrator for a space-based…

gr-qc2023★ 27 cited

Analysis of a subsolar-mass compact binary candidate from the second observing run of Advanced LIGO

Gonzalo Morrás, José Francisco Nuño Siles, Juan García-Bellido +8

We perform an exhaustive follow-up analysis of a subsolar-mass (SSM) gravitational wave (GW) candidate reported by Phukon et al. from the second observing run of Advanced LIGO. Thi…