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Gravitational waves, like light, can be gravitationally lensed by massive astrophysical objects such as galaxies and galaxy clusters. Strong gravitational-wave lensing, forecasted at a reasonable rate in ground-based gravitational-wave…

General Relativity and Quantum Cosmology · Physics 2021-08-18 Justin Janquart , Otto A. Hannuksela , Haris K. , Chris Van Den Broeck

We derive a simple algebraic criterion to select the optimal detector network for a coherent wide parameter-space (all-sky) search for continuous gravitational waves. Optimality in this context is defined as providing the highest (average)…

General Relativity and Quantum Cosmology · Physics 2016-11-15 Reinhard Prix

It has long been known that the search for gravitational waves from inspiraling binaries must be aided by signal processing methods, and that the technique of matched filtering is the most likely to be used for the detection of inspiral…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Benjamin J. Owen

As second-generation gravitational-wave detectors prepare to analyze data at unprecedented sensitivity, there is great interest in searches for unmodeled transients, commonly called bursts. Significant effort has yielded a variety of…

Instrumentation and Methods for Astrophysics · Physics 2015-11-04 Eric Thrane , Michael Coughlin

The population of stellar-mass, compact object binaries that merge with non-negligible eccentricity may be large enough to motivate searches with ground-based gravitational wave detectors. Such events could be exceptional laboratories to…

General Relativity and Quantum Cosmology · Physics 2017-10-11 Nicholas Loutrel , Nicolas Yunes , Frans Pretorius

Pulsar Timing Array projects have found evidence of a stochastic background of gravitational waves (GWB) using data from an ensemble of pulsars. In the literature, minimal assumptions are made about the signal and noise processes that…

Instrumentation and Methods for Astrophysics · Physics 2024-11-28 Rutger van Haasteren

Typical sources of gravitational wave bursts are supernovae, for which no accurate models exist. This calls for search methods with high efficiency and robustness to be used in the data analysis of foreseen interferometric detectors. A set…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Thierry Pradier , Nicolas Arnaud , Marie-Anne Bizouard , Fabien Cavalier , Michel Davier , Patrice Hello

We describe the design of a gravitational wave timing array, a novel scheme that can be used to search for low-frequency gravitational waves by monitoring continuous gravitational waves at higher frequencies. We show that observations of…

General Relativity and Quantum Cosmology · Physics 2022-07-25 María José Bustamante-Rosell , Joel Meyers , Noah Pearson , Cynthia Trendafilova , Aaron Zimmerman

The matched filtering paradigm is the mainstay of gravitational wave (GW) searches from astrophysical coalescing compact binaries. The compact binary coalescence (CBC) search pipelines perform the matched filter between the GW detector's…

General Relativity and Quantum Cosmology · Physics 2024-06-19 Chetan Verma , Amit Reza , Dilip Krishnaswamy , Sarah Caudill , Gurudatt Gaur

Gravitational wave bursters are sources which emit repeatedly bursts of gravitational waves, and have been recently suggested as potentially interesting candidates for gravitational wave (GW) detectors. Mechanisms that could give rise to a…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Florian Dubath , Stefano Foffa , Maria Alice Gasparini , Michele Maggiore , Riccardo Sturani

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

An observation of gravitational waves is a trigger of the multi-messenger search of an astronomical event. A combination of the data from two or three gravitational wave telescopes indicates the location of a source and low-latency data…

General Relativity and Quantum Cosmology · Physics 2022-06-08 Seiya Sasaoka , Hirotaka Takahashi , Yilun Hou , Kentaro Somiya

The gravitational wave sky is starting to become very crowded, with the fourth science run (O4) at LIGO expected to detect $\mathcal{O}(100)$ compact object coalescence signals. Data analysis issues start to arise as we look further…

General Relativity and Quantum Cosmology · Physics 2023-08-15 James Alvey , Uddipta Bhardwaj , Samaya Nissanke , Christoph Weniger

Multi-messenger astrophysics is undergoing a transition towards low-latency searches based on signals that could not individually be established as discoveries. The rapid identification of signals is important in order to initiate timely…

High Energy Astrophysical Phenomena · Physics 2019-10-30 Imre Bartos , Doga Veske , Azadeh Keivani , Zsuzsa Marka , Stefan Countryman , Erik Blaufuss , Chad Finley , Szabolcs Marka

Advanced LIGO data contains numerous noise transients, or "glitches", that have been shown to reduce the sensitivity of matched filter searches for gravitational waves from compact binaries by increasing the rate at which random…

General Relativity and Quantum Cosmology · Physics 2020-08-26 Derek Davis , Laurel V. White , Peter R. Saulson

We explore scaling relations for the information carried by individual events, and how that information accumulates in catalogs like those from ground-based gravitational-wave detectors. For a variety of situations, the larger number of…

General Relativity and Quantum Cosmology · Physics 2024-07-17 Reed Essick , Daniel E. Holz

Over a hundred gravitational-wave signals have now been detected from the mergers of black holes and neutron stars, but other sources of gravitational waves have not yet been discovered. Some of the most violent explosive events in the…

High Energy Astrophysical Phenomena · Physics 2025-01-24 Jade Powell , Paul D. Lasky

Recent gravitational-wave transient catalogs have used \pastro{}, the probability that a gravitational-wave candidate is astrophysical, to select interesting candidates for further analysis. Unlike false alarm rates, which exclusively…

Instrumentation and Methods for Astrophysics · Physics 2023-11-14 Sharan Banagiri , Christopher P. L. Berry , Gareth S. Cabourn Davies , Leo Tsukada , Zoheyr Doctor

Gravitational wave detectors are already operating at interesting sensitivity levels, and they have an upgrade path that should result in secure detections by 2014. We review the physics of gravitational waves, how they interact with…

General Relativity and Quantum Cosmology · Physics 2015-05-13 B. S. Sathyaprakash , B. F. Schutz

Gravitational wave astronomy is rapidly advancing with the development of new observatories, leading to an increasing volume and complexity of data. This trend places growing pressure on classical data analysis methods and motivates the…

Instrumentation and Methods for Astrophysics · Physics 2026-03-19 Fangzhou Guo , Jibo He