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Transient non-gaussian noise in gravitational wave detectors, commonly referred to as glitches, pose challenges for inference of the astrophysical properties of detected signals when the two are coincident in time. Current analyses aim…

广义相对论与量子宇宙学 · 物理学 2021-02-17 Katerina Chatziioannou , Neil Cornish , Marcella Wijngaarden , Tyson B. Littenberg

Pulsar Timing Array (PTA) experiments exploit the clock-like behaviour of an array of millisecond pulsars, with the goal of detecting low-frequency gravitational waves. PTA experiments have been in operation over the last decade, led by…

天体物理仪器与方法 · 物理学 2018-03-28 Caterina Tiburzi

Compact binary coalescences (CBCs), such as merging binary black holes (BBHs), binary neutron stars (BNSs), or neutron star black holes (NSBHs), hosted by dense stellar environments, could produce gravitational waves (GWs) that contain…

高能天体物理现象 · 物理学 2025-07-14 Avinash Tiwari , Aditya Vijaykumar , Shasvath J. Kapadia , Shrobana Ghosh , Alex B. Nielsen

Gravitational waveforms from the inspiral and ring-down stages of the binary black hole coalescences can be modelled accurately by approximation/perturbation techniques in general relativity. Recent progress in numerical relativity has…

Since the initial discovery of gravitational-waves from merging black holes, the LIGO Scientific Collaboration together with Virgo and KAGRA have published 90 gravitational-wave observations of compact binary mergers in the…

广义相对论与量子宇宙学 · 物理学 2022-09-09 Vera Del Favero

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…

广义相对论与量子宇宙学 · 物理学 2018-05-29 Alexander H. Nitz , Thomas Dent , Tito Dal Canton , Stephen Fairhurst , Duncan A. Brown

We present ${\tt bajes}$, a parallel and lightweight framework for Bayesian inference of multimessenger transients. ${\tt bajes}$ is a Python modular package with minimal dependencies on external libraries adaptable to the majority of the…

广义相对论与量子宇宙学 · 物理学 2021-08-18 Matteo Breschi , Rossella Gamba , Sebastiano Bernuzzi

Ground-based gravitational wave laser interferometers (LIGO, GEO-600, Virgo and Tama-300) have now reached high sensitivity and duty cycle. We present a Bayesian evidence-based approach to the search for gravitational waves, in particular…

广义相对论与量子宇宙学 · 物理学 2008-11-26 John Veitch , Alberto Vecchio

Many inspiraling and merging stellar remnants emit both gravitational and electromagnetic radiation as they orbit or collide. These gravitational wave events together with their associated electromagnetic counterparts provide insight about…

天体物理仪器与方法 · 物理学 2021-03-17 Michael L. Katz , Olivia R. Cooper , Michael W. Coughlin , Kevin B. Burdge , Katelyn Breivik , Shane L. Larson

The search for continuous gravitational waves demands computationally efficient algorithms that can handle highly non-linear parameter spaces. Loosely coherent algorithms establish upper limits and detect signals by analyzing families of…

天体物理仪器与方法 · 物理学 2019-01-04 Vladimir Dergachev

The idea of searching for gravitational waves using cavities in strong magnetic fields has recently received significant attention. Most concepts foresee moderate magnetic fields in rather small volumes, similar to those which are currently…

广义相对论与量子宇宙学 · 物理学 2022-11-29 Kristof Schmieden , Matthias Schott

Pulsar timing arrays (PTAs) detect low-frequency gravitational waves (GWs) by looking for correlated deviations in pulse arrival times. Current Bayesian searches use Markov Chain Monte Carlo (MCMC) methods, which struggle to sample the…

天体物理仪器与方法 · 物理学 2023-03-08 Gabriel E. Freedman , Aaron D. Johnson , Rutger van Haasteren , Sarah J. Vigeland

We present a first-stage study of the effect of using knowledge from electromagnetic (EM) observations in the gravitational wave (GW) data analysis of Galactic binaries that are predicted to be observed by the new Laser Interferometer Space…

天体物理仪器与方法 · 物理学 2015-06-05 Sweta Shah , Marc van der Sluys , Gijs Nelemans

In this technical note, we study the possibility of using networks of ground-based detectors to directly measure gravitational-wave polarizations using signals from compact binary coalescences. We present a simple data analysis method to…

广义相对论与量子宇宙学 · 物理学 2017-10-12 Maximiliano Isi , Alan J. Weinstein

GW170817-GRB 170817A provided the first observation of gravitational waves from a neutron star merger with associated transient counterparts across the entire electromagnetic spectrum. This discovery demonstrated the long-hypothesized…

广义相对论与量子宇宙学 · 物理学 2024-03-07 M. Pillas , T. Dal Canton , C. Stachie , B. Piotrzkowski , F. Hayes , R. Hamburg , E. Burns , J. Wood , P. A. Duverne , N. Christensen

Matched filtering is a popular data analysis framework used to search for gravitational wave signals emitted by compact object binaries. The templates used in matched filtering searches are constructed predominantly from the quadrupolar…

广义相对论与量子宇宙学 · 物理学 2013-08-13 James Healy , Pablo Laguna , Larne Pekowsky , Deirdre Shoemaker

We provide an observation method for gravitational waves using a pulsar timing array to extend the observational frequency range up to the rotational frequency of pulsars. For this purpose, we perform an analysis of a perturbed…

广义相对论与量子宇宙学 · 物理学 2022-02-04 Chan Park

We investigate the prospect of probing massive fields and testing gravitational theories with multiband observations of gravitational waves emitted from coalescing compact binaries. Focusing on the dipole radiation induced by a massive…

广义相对论与量子宇宙学 · 物理学 2024-09-10 Mu-Chun Chen , Hao-Yang Liu , Qi-Yan Zhang , Jun Zhang

The temporal dependence of the astrophysical stochastic gravitational-wave (GW) background (SGWB) in the hecto-hertz band brings a unique avenue to identify multi-messenger signals to these sources by using coincident detection in both GW…

高能天体物理现象 · 物理学 2025-07-28 Hardik Jitendra Kuralkar , Mohit Raj Sah , Suvodip Mukherjee

We have developed a new gravitaional-wave (GW) detector, TOrsion-Bar Antenna (TOBA), with multiple-output configuration. TOBA is a detector with bar-shaped test masses that rotate by the tidal force of the GWs. In our detector, three…

广义相对论与量子宇宙学 · 物理学 2017-04-19 Ayaka Shoda , Yuya Kuwahara , Masaki Ando , Kazunari Eda , Kodai Tejima , Yoichi Aso , Yousuke Itoh