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Related papers: Astrophysical Sources of Stochastic Gravitational-…

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We review detection methods that are currently in use or have been proposed to search for a stochastic background of gravitational radiation. We consider both Bayesian and frequentist searches using ground-based and space-based laser…

General Relativity and Quantum Cosmology · Physics 2017-04-11 Joseph D. Romano , Neil J. Cornish

Stochastic gravitational waves (GW) associated with unresolved astrophysical sources at frequency bands of the ongoing GW interferometers LIGO/VIRGO and LISA are studied. We show that GW noise from rotating galactic neutron stars with low…

Astrophysics · Physics 2007-05-23 K. A. Postnov

Detecting a stochastic gravitational wave background requires that we first understand and model any astrophysical foregrounds. In the millihertz frequency band, the predominate foreground signal will be from unresolved white dwarf binaries…

General Relativity and Quantum Cosmology · Physics 2014-01-23 Matthew R. Adams , Neil J. Cornish

The detection of electromagnetic counterparts to gravitational waves has great promise for the investigation of many scientific questions. It has long been hoped that in addition to providing extra, non-gravitational information about the…

High Energy Astrophysical Phenomena · Physics 2017-01-18 Chris Pankow , Laura Sampson , Leah Perri , Eve Chase , Scott Coughlin , Michael Zevin , Vassiliki Kalogera

A stochastic background of relic gravitational waves is achieved by the so called adiabatically-amplified zero-point fluctuations process derived from early inflation. In principle, it provides a distinctive spectrum of relic gravitational…

General Relativity and Quantum Cosmology · Physics 2008-11-26 S. Capozziello , Ch. Corda , M De Laurentis

Cosmic-rays are charged particles moving in magnetic fields. They not only emit well-known synchrotron photons but also gravitational radiation. We clarify the characteristics of the gravitational wave signal in this specific situation and…

General Relativity and Quantum Cosmology · Physics 2025-06-17 Aurélien Barrau , Juan García-Bellido , Killian Martineau , Daryna Yushchenko

Many phenomena such as stellar variability, stellar explosions, behavior of different kind of X-ray and gamma-ray sources, processes in active galactic nuclei and other astrophysical objects show stochastic features. Brief description of…

Astrophysics · Physics 2021-04-28 G. S. Bisnovatyi-Kogan

The coalescence of compact binary stars is expected to produce a stochastic background of gravitational waves (GW) observable with future GW detectors. Such backgrounds are usually characterized by their power spectrum as a function of…

Cosmology and Nongalactic Astrophysics · Physics 2020-10-07 Yonadav Barry Ginat , Vincent Desjacques , Robert Reischke , Hagai B. Perets

The stochastic gravitational wave background produced by supernovas, magnetars and merger of binaries constituted by a pair of compact objects is reviewed and updated. The merger of systems composed by two black holes dominates by far the…

High Energy Astrophysical Phenomena · Physics 2020-01-28 José Antonio de Freitas Pacheco

We show that the anisotropies of the astrophysical stochastic gravitational wave background in the mHz band have a strong dependence on the modelling of galactic and sub-galactic physics. We explore a wide range of self-consistent…

Cosmology and Nongalactic Astrophysics · Physics 2020-01-08 Giulia Cusin , Irina Dvorkin , Cyril Pitrou , Jean-Philippe Uzan

We present the results of the search for an astrophysical gravitational-wave stochastic background during the second Einstein Telescope mock data and science challenge. Assuming that the loudest sources can be detected individually and…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 T. Regimbau , D. Meacher , M Coughlin

In this this paper the stochastic background of gravitational waves (SBGWs) is analyzed with the auxilium of the WMAP data. We emphasize that, in general, in previous works in the literature about the SBGWs, old COBE data were used. After…

Astrophysics · Physics 2008-11-26 Christian Corda , Salvatore Capozziello , Mariafelicia De Laurentis

These lecture notes provide a brief introduction to methods used to search for a stochastic background of gravitational radiation -- a superposition of gravitational-wave signals that are either too weak or too numerous to individually…

General Relativity and Quantum Cosmology · Physics 2023-07-07 Joseph D. Romano

Unresolved and resolved sources of gravitational waves are at the origin of a stochastic gravitational wave background. While the computation of its mean density as a function of frequency in a homogeneous and isotropic universe is standard…

Cosmology and Nongalactic Astrophysics · Physics 2018-07-19 Giulia Cusin , Cyril Pitrou , Jean-Philippe Uzan

A stochastic background of relic gravitational waves is achieved by the so called adiabatically-amplified zero-point fluctuations process derived from early inflation. It provides a distinctive spectrum of relic gravitational waves. In the…

General Relativity and Quantum Cosmology · Physics 2009-11-05 Mariafelicia De Laurentis , Salvatore Capozziello

Many gravitational wave (GW) sources are expected to have non-negligible eccentricity in the millihertz band. These highly eccentric compact object binaries may commonly serve as a progenitor stage of GW mergers, particularly in dynamical…

High Energy Astrophysical Phenomena · Physics 2026-05-28 Zeyuan Xuan , Smadar Naoz , Bence Kocsis , Erez Michaely

Primordial black holes, if considered to constitute a significant fraction of cold dark matter, trace the inhomogeneous large-scale structure of the Universe. Consequently, the stochastic gravitational-wave background, originating from…

General Relativity and Quantum Cosmology · Physics 2022-12-22 Sai Wang , Valeri Vardanyan , Kazunori Kohri

Astrometry, the precise measurement of star motions, offers an alternative avenue to investigate low-frequency gravitational waves through the spatial deflection of photons, complementing pulsar timing arrays reliant on timing residuals.…

General Relativity and Quantum Cosmology · Physics 2024-05-06 Mesut Çalışkan , Yifan Chen , Liang Dai , Neha Anil Kumar , Isak Stomberg , Xiao Xue

A valuable target for advanced gravitational-wave detectors is the stochastic gravitational-wave background. The stochastic background imparts a weak correlated signal into networks of gravitational-wave detectors, and so standard searches…

High Energy Astrophysical Phenomena · Physics 2018-12-26 Thomas Callister , Michael Coughlin , Jonah Kanner

Superposition of gravitational waves generated by astrophysical sources is expected to give rise to the stochastic gravitational-wave background. We focus on the background generated by the ring-down of black holes produced in the stellar…

General Relativity and Quantum Cosmology · Physics 2015-09-16 K. Crocker , V. Mandic , T. Regimbau , K. Belczynski , W. Gladysz , K. Olive , T. Prestegard , E. Vangioni