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We compare two multi-detector detection strategies, namely, the coincidence and the coherent, for the detection of spinless inspiraling compact binary gravitational wave signals. The coincident strategy treats the detectors as if they are…

General Relativity and Quantum Cosmology · Physics 2011-09-30 S. Dhurandhar , H. Mukhopadhyay , H. Tagoshi , N. Kanda

Gravitational-wave (GW) observations by a network of ground-based laser interferometric detectors allow us to probe the nature of GW polarizations. This would be an interesting test of general relativity (GR), since GR predicts only two…

General Relativity and Quantum Cosmology · Physics 2021-01-27 Srashti Goyal , K. Haris , Ajit Kumar Mehta , Parameswaran Ajith

Gravitational-wave data from advanced-era interferometric detectors consists of background Gaussian noise, frequent transient artefacts, and rare astrophysical signals. Multiple search algorithms exist to detect the signals from compact…

General Relativity and Quantum Cosmology · Physics 2026-01-13 Gregory Ashton , Ann-Kristin Malz , Nicolo Colombo

Based on the rate of gravitational-wave (GW) detections by Advanced LIGO and Virgo, we expect these detectors to observe hundreds of binary black hole mergers as they achieve their design sensitivities (within a few years). A small fraction…

General Relativity and Quantum Cosmology · Physics 2018-07-19 K. Haris , Ajit Kumar Mehta , Sumit Kumar , Tejaswi Venumadhav , Parameswaran Ajith

The Advanced LIGO and Advanced Virgo gravitational wave (GW) detectors will begin operation in the coming years, with compact binary coalescence events a likely source for the first detections. The gravitational waveforms emitted directly…

Bayesian parameter estimation on gravitational waves from compact binary coalescences (CBCs) typically requires millions of template waveform computations at different values of the parameters describing the binary. Sampling techniques such…

High Energy Astrophysical Phenomena · Physics 2014-09-05 Rory Smith , Chad Hanna , Ilya Mandel , Alberto Vecchio

Low-latency analyses of gravitational-wave (GW) data from LIGO, Virgo, and KAGRA enable rapid detection of compact binary coalescences (CBC) and prompt sky localization, essential for electromagnetic follow-up in multi-messenger astronomy.…

High Energy Astrophysical Phenomena · Physics 2025-10-28 Amazigh Ouzriat , Viola Sordini , Francesco Di Renzo

Compact binary coalescences are a promising source of gravitational waves for second-generation interferometric gravitational-wave detectors such as advanced LIGO and advanced Virgo. While most binaries are expected to possess circular…

General Relativity and Quantum Cosmology · Physics 2015-06-23 Michael Coughlin , Patrick Meyers , Eric Thrane , Jialun Luo , Nelson Christensen

Coalescing compact binaries emitting gravitational wave (GW) signals, as recently detected by the Advanced LIGO-Virgo network, constitute a population over the multi-dimensional space of component masses and spins, redshift, and other…

Instrumentation and Methods for Astrophysics · Physics 2019-01-30 Sebastian M. Gaebel , John Veitch , Thomas Dent , Will M. Farr

Bayesian model selection provides a powerful and mathematically transparent framework to tackle hypothesis testing, such as detection tests of gravitational waves emitted during the coalescence of binary systems using ground-based laser…

General Relativity and Quantum Cosmology · Physics 2009-11-13 John Veitch , Alberto Vecchio

As the Advanced LIGO and Advanced Virgo interferometers, soon to be joined by the KAGRA interferometer, increase their sensitivity, they detect an ever-larger number of gravitational waves with a significant presence of higher multipoles in…

General Relativity and Quantum Cosmology · Physics 2022-02-09 G. Vedovato , E. Milotti , G. A. Prodi , S. Bini , M. Drago , V. Gayathri , O. Halim , C. Lazzaro , D. Lopez , A. Miani , B. O'Brian , F. Salemi , M. Szczepanczyk , S. Tiwari , A. Virtuoso , S. Klimenko

We compare two strategies of multi-detector detection of compact binary inspiral signals, namely, the coincidence and the coherent for the realistic case of geographically separated detectors.We compare the performances of the methods by…

General Relativity and Quantum Cosmology · Physics 2010-01-07 Himan Mukhopadhyay , Hideyuki Tagoshi , Sanjeev Dhurandhar , Nobuyuki Kanda

We present an improved search for binary compact-object mergers using a network of ground-based gravitational-wave detectors. We model a volumetric, isotropic source population and incorporate the resulting distribution over signal…

General Relativity and Quantum Cosmology · Physics 2018-05-29 Alexander H. Nitz , Thomas Dent , Tito Dal Canton , Stephen Fairhurst , Duncan A. Brown

Searching for gravitational waves from compact binary coalescence (CBC) is performed by matched filtering the observed strain data from gravitational-wave observatories against a discrete set of waveform templates designed to accurately…

Instrumentation and Methods for Astrophysics · Physics 2022-05-12 Rahul Dhurkunde , Henning Fehrmann , Alexander H. Nitz

The promise of multi-messenger astronomy relies on the rapid detection of gravitational waves at very low latencies ($\mathcal{O}$(1\,s)) in order to maximize the amount of time available for follow-up observations. In recent years,…

We describe the PyCBC search for gravitational waves from compact-object binary coalescences in advanced gravitational-wave detector data. The search was used in the first Advanced LIGO observing run and unambiguously identified two black…

As the number of detected gravitational wave sources increase with increasing sensitivity of the gravitational wave observatories, observing strongly lensed pair of events will become a real possibility. Lensed GW events will have very…

Cosmology and Nongalactic Astrophysics · Physics 2022-06-29 Anupreeta More , Surhud More

We compare two strategies of multi-detector detection of compact binary inspiral signals, namely, the coincidence and the coherent. For simplicity we consider here two identical detectors having the same power spectral density of noise,…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Himan Mukhopadhyay , Norichica Sago , Hideyuki Tagoshi , Sanjeev Dhurandhar , Hirotaka Takahashi , Nobuyuki Kanda

Rapid detection of compact binary coalescence (CBC) with a network of advanced gravitational-wave detectors will offer a unique opportunity for multi-messenger astronomy. Prompt detection alerts for the astronomical community might make it…

Most of compact binary systems are expected to circularize before the frequency of emitted gravitational waves (GWs) enters the sensitivity band of the ground based interferometric detectors. However, several mechanisms have been proposed…