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The LIGO observatories detect gravitational waves through monitoring changes in the detectors' length down to below $10^{-19}$\,$m/\sqrt{Hz}$ variation---a small fraction of the size of the atoms that make up the detector. To achieve this…

Instrumentation and Methods for Astrophysics · Physics 2020-05-27 Robert E. Colgan , K. Rainer Corley , Yenson Lau , Imre Bartos , John N. Wright , Zsuzsa Marka , Szabolcs Marka

Matched-filter searches for gravitational waves from coalescing compact binaries by the LIGO Scientific Collaboration use the FINDCHIRP algorithm: an implementation of the optimal filter with innovations to account for unknown signal…

General Relativity and Quantum Cosmology · Physics 2017-09-19 Bruce Allen , Warren G. Anderson , Patrick R. Brady , Duncan A. Brown , Jolien D. E. Creighton

The determination of the physical parameters of gravitational wave events is a fundamental pillar in the analysis of the signals observed by the current ground-based interferometers. Typically, this is done using Bayesian inference…

General Relativity and Quantum Cosmology · Physics 2023-11-07 M. Andrés-Carcasona , M. Martinez , Ll. M. Mir

The list of putative sources of gravitational waves possibly detected by the ongoing worldwide network of large scale interferometers has been continuously growing in the last years. For some of them, the detection is made difficult by the…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Eric Chassande-Mottin , Archana Pai

In the era of second generation ground-based gravitational wave detectors, short gamma-ray bursts (GRBs) will be among the most promising astrophysical events for joint electromagnetic and gravitational wave observation. A targeted search…

General Relativity and Quantum Cosmology · Physics 2014-12-31 A. R. Williamson , C. Biwer , S. Fairhurst , I. W. Harry , E. Macdonald , D. Macleod , V. Predoi

Gravitational wave observations from merging compact objects are becoming commonplace, and as detectors improve and gravitational wave sources become more varied, it is increasingly important to have dense and expansive template banks of…

General Relativity and Quantum Cosmology · Physics 2023-01-25 Deborah Ferguson

This work introduces a novel deep learning-based approach for gravitational wave anomaly detection, aiming to overcome the limitations of traditional matched filtering techniques in identifying unknown waveform gravitational wave signals.…

Machine Learning · Computer Science 2025-03-18 Jianqi Yan , Alex P. Leung , Zhiyuan Pei , David C. Y. Hui , Sangin Kim

In the coming years, third-generation detectors such as Einstein Telescope and Cosmic Explorer will enter the network of ground-based gravitational-wave detectors. Their current design predicts a significantly improved sensitivity band with…

General Relativity and Quantum Cosmology · Physics 2024-06-21 Justin Janquart , Tomasz Baka , Anuradha Samajdar , Tim Dietrich , Chris Van Den Broeck

This paper presents the results of the observations of the detectors participating in the International Gravitational Event Collaboration (IGEC) from 1997 to 2000 and reviews the data analysis methods. The analysis is designed to search for…

Astrophysics · Physics 2012-08-27 International Gravitational Event Collaboration

Given the recent detection of gravitational waves from individual sources it is almost a certainty that some form of background of gravitational waves will be detected in future. The most promising candidate for such a detection are…

Instrumentation and Methods for Astrophysics · Physics 2019-01-31 A. I. Renzini , C. R. Contaldi

Pulsar timing uses the highly stable pulsar spin period to investigate many astrophysical topics. In particular, pulsar timing arrays make use of a set of extremely well-timed pulsars and their time correlations as a challenging detector of…

Astrophysics of Galaxies · Physics 2021-12-16 Michele Maiorano , Francesco De Paolis , Achille A. Nucita

We discuss a method of coincidence analysis to search for gravitational waves from inspiraling compact binaries using the data of two laser interferometer gravitational wave detectors. We examine the allowed difference of the wave's…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Hirotaka Takahashi , Hideyuki Tagoshi , the TAMA Collaboration , the LISM Collaboration

We present results of the search for coincident burst excitations over a 24 hours long data set collected by AURIGA, EXPLORER, NAUTILUS and Virgo detectors during September 2005. The search of candidate triggers was performed independently…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Virgo collaboration

Artificial objects usually have very stable shape features, which are stable, persistent properties in geometry. They can provide evidence for object recognition. Shape features are more stable and more distinguishing than appearance…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Hui Wei , Fu-yu Tang

We present a maximum-likelihood analysis for estimating the angular distribution of power in an anisotropic stochastic gravitational-wave background using ground-based laser interferometers. The standard isotropic and gravitational-wave…

Instrumentation and Methods for Astrophysics · Physics 2013-09-05 Eric Thrane , Stefan Ballmer , Joseph D. Romano , Sanjit Mitra , Dipongkar Talukder , Sukanta Bose , Vuk Mandic

The matched filtering technique is used to search for gravitational wave signals of a known form in the data taken by ground-based detectors. However, the analyzed data contains a number of artifacts arising from various broad-band…

General Relativity and Quantum Cosmology · Physics 2016-08-16 S. Babak , H. Grote , M. Hewitson , H. Lück , K. A. Strain

Strong gravitational lensing of gravitational waves (GWs) has been forecasted to become detectable in the upcoming observing runs. However, definitively distinguishing pairs of lensed sources from random associations is a challenging…

Cosmology and Nongalactic Astrophysics · Physics 2023-05-31 Mesut Çalışkan , Jose María Ezquiaga , Otto A. Hannuksela , Daniel E. Holz

The identification of electromagnetic emission from gravitational-wave sources typically requires multiple follow-up observations due to the limited fields-of-view of follow-up observatories compared to the poorly localized direction of…

Instrumentation and Methods for Astrophysics · Physics 2020-07-01 Nihar Gupte , Imre Bartos

A second generation of gravitational wave detectors will soon come online with the objective of measuring for the first time the tiny gravitational signal from the coalescence of black hole and/or neutron star binaries. In this…

Instrumentation and Methods for Astrophysics · Physics 2017-10-26 Eric Chassande-Mottin , Eric Lebigot , Hugo Magaldi , Eve Chase , Archana Pai , Gayathri V , Gabriele Vedovato