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A Differentiable Parametric Model of Binary-Black-Hole Initial Data: I. Conformally flat Bowen-York punctures
Frederik De Ceuster, Tjonnie G. -F. Li
Constraint-satisfying initial data for binary black holes require the repeated solution of a nonlinear elliptic boundary-value problem throughout the physical parameter space. We p…
The impact of physically motivated calibration errors on search pipeline detection parameters for broadband burst Signals
Milan Wils, Brad Ratto, Jeffrey S. Kissel +4
Imperfections in the calibration of gravitational wave observatories introduce frequency dependent amplitude and phase errors on the measured GW signal. Previous unmodelled burst s…
Impact of the Einstein Telescope's duty cycle on the estimation of binary black holes parameters
Luca Negri, Thomas C. K. Ng, Thibeau Wouters +13
The geometry of the Einstein Telescope, the proposed next-generation European gravitational-wave observatory, is yet to be finalized. Two competing designs are under consideration:…
Quadratic gravity corrections to scalar QNMs of rapidly rotating black holes
Stef J. B. Husken, Tom van der Steen, Simon Maenaut +6
In an effective-field-theory framework for gravity, black-hole quasinormal mode spectra acquire corrections in quadratic-curvature, scalar-tensor extensions of general relativity.…
Ringing of rapidly rotating black holes in effective field theory
Tom van der Steen, Simon Maenaut, Stef J. B. Husken +5
Within the effective field theory approach to gravity, deviations from general relativity can be systematically described by higher-curvature operators. However, computing the resu…
Bayesian Calibration of Gravitational-Wave Detectors Using Null Streams Without Waveform Assumptions
Isaac C. F. Wong, Francesco Cireddu, Milan Wils +4
We introduce a Bayesian null-stream method to constrain calibration errors in closed-geometry gravitational-wave (GW) detector networks. Unlike prior methods requiring electromagne…
Ringdown Analysis of Rotating Black Holes in Effective Field Theory Extensions of General Relativity
Simon Maenaut, Gregorio Carullo, Pablo A. Cano +4
Quasinormal modes of rapidly rotating black holes were recently computed in a generic effective-field-theory extension of general relativity with higher-derivative corrections. We…
Using time series to identify strongly-lensed gravitational waves with deep learning
Arthur Offermans, Tjonnie G. F. Li
The presence of a massive body between the Earth and a gravitational-wave source will produce the so-called gravitational lensing effect. In the case of strong lensing, it leads to…
Null Stream Based Third-generation-ready Glitch Mitigation for Gravitational Wave Measurements
Harsh Narola, Thibeau Wouters, Luca Negri +10
Gravitational Wave (GW) detectors routinely encounter transient noise bursts, known as glitches, which are caused by either instrumental or environmental factors. Due to their high…
Millilensing induced systematic biases in parameterized tests of General Relativity
Anna Liu, Rohit S. Chandramouli, Otto A. Hannuksela +2
Tests of general relativity (GR) can be systematically biased when our waveform models are inaccurate. We here study systematic biases in tests of general relativity induced by neg…
Potential impact of noise correlation in next-generation gravitational wave detectors
Isaac C. F. Wong, Peter T. H. Pang, Milan Wils +3
Building upon the statistical formulation for parameter estimation (PE) in the presence of correlated noise proposed by Cireddu et al., we present the initial study to incorporate…
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…
Inferring properties of dark galactic halos using strongly lensed gravitational waves
Eungwang Seo, Tjonnie Guan Feng Li, Martin Anthony Hendry
Gravitational waves (GWs) can be deflected, similarly to electromagnetic (EM) waves, by massive objects through the phenomenon of gravitational lensing. The importance of gravitati…
Characterizing Gravitational Wave Detector Networks: From A to Cosmic Explorer
Ish Gupta, Chaitanya Afle, K. G. Arun +44
Gravitational-wave observations by the Laser Interferometer Gravitational-Wave Observatory (LIGO) and Virgo have provided us a new tool to explore the Universe on all scales from n…
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…
Exploring the hidden Universe: A novel phenomenological approach for recovering arbitrary gravitational-wave millilensing configurations
Anna Liu, Isaac C. F. Wong, Samson H. W. Leong +3
Since the first detection of gravitational waves in 2015, gravitational-wave astronomy has emerged as a rapidly advancing field that holds great potential for studying the cosmos,…
Deep Learning-based Search for Microlensing Signature from Binary Black Hole Events in GWTC-1 and -2
Kyungmin Kim, Joongoo Lee, Otto A. Hannuksela +1
We present the result of the first deep learning-based search for the signature of microlensing in gravitational waves. This search seeks the signature induced by lenses with masse…
Gravitational-wave parameter inference with the Newman-Penrose scalar
Juan Calderon Bustillo, Isaac C. F. Wong, Nicolas Sanchis-Gual +7
Detection and parameter inference of gravitational-wave signals \ncor{from compact mergers} rely on the comparison of the incoming detector strain data to waveform templates…
Inferring the Intermediate Mass Black Hole Number Density from Gravitational Wave Lensing Statistics
Joseph Gais, Ken Ng, Eungwang Seo +2
The population properties of intermediate mass black holes remain largely unknown, and understanding their distribution could provide a missing link in the formation of supermassiv…
Detectability of microlensed gravitational waves
Simon M. C. Yeung, Mark H. Y. Cheung, Joseph A. J. Gais +2
Gravitational lensing describes the bending of the trajectories of light and gravitational waves due to the gravitational potential of a massive object. Strong lensing by galaxies…
Using overlap of sky localization probability maps for filtering potentially lensed pairs of gravitational-wave signals
Henry W. Y. Wong, Lok W. L. Chan, Isaac C. F. Wong +2
Strong gravitational lensing creates multiple images of a gravitational wave transient. The current state-of-the-art method for identifying such lensing events is a computationally…
On the identification of individual gravitational wave image types of a lensed system using higher-order modes
Justin Janquart, Eungwang Seo, Otto A. Hannuksela +2
Similarly to light, gravitational waves can be gravitationally lensed as they propagate near massive astrophysical objects such as galaxies, stars, or black holes. In recent years,…
Investigation of the effects of non-Gaussian noise transients and their mitigation in parameterized gravitational-wave tests of general relativity
Jack Y. L. Kwok, Rico K. L. Lo, Alan J. Weinstein +1
The detection of gravitational waves from compact binary coalescence by Advanced LIGO and Advanced Virgo provides an opportunity to study the strong-field, highly relativistic regi…
Signal Space in the Triangular Network of Einstein Telescope
Isaac C. F. Wong, Tjonnie G. F. Li
The proposed third-generation gravitational-wave detectors Einstein Telescope will have a triangular design that consists of three colocated interferometers. Summing the strain out…