Related papers: Distinguishing a stochastic gravitational-wave sig…

Detecting a stochastic gravitational-wave background in the presence of correlated magnetic noise

A detection of the stochastic gravitational-wave background (SGWB) from unresolved compact binary coalescences could be made by Advanced LIGO and Advanced Virgo at their design sensitivities. However, it is possible for magnetic noise that…

General Relativity and Quantum Cosmology · Physics 2020-11-18 Patrick M. Meyers , Katarina Martinovic , Nelson Christensen , Mairi Sakellariadou

Searching for stochastic gravitational waves using data from the two co-located LIGO Hanford detectors

Searches for a stochastic gravitational-wave background (SGWB) using terrestrial detectors typically involve cross-correlating data from pairs of detectors. The sensitivity of such cross-correlation analyses depends, among other things, on…

General Relativity and Quantum Cosmology · Physics 2015-01-14 The LIGO Scientific Collaboration , the Virgo Collaboration , J. Aasi , J. Abadie , B. P. Abbott , R. Abbott , T. Abbott , M. R. Abernathy , T. Accadia , F. Acernese , C. Adams , T. Adams , P. Addesso , R. X. Adhikari , C. Affeldt , M. Agathos , N. Aggarwal , O. D. Aguiar , P. Ajith , B. Allen , A. Allocca , E. Amado. Ceron , D. Amariutei , R. A. Anderson , S. B. Anderson , W. G. Anderson , K. Arai , M. C. Araya , C. Arceneaux , J. Areeda , S. Ast , S. M. Aston , P. Astone , P. Aufmuth , C. Aulbert , L. Austin , B. E. Aylott , S. Babak , P. T. Baker , G. Ballardin , S. W. Ballmer , J. C. Barayoga , D. Barker , S. H. Barnum , F. Barone , B. Barr , L. Barsotti , M. Barsuglia , M. A. Barton , I. Bartos , R. Bassiri , A. Basti , J. Batch , J. Bauchrowitz , Th. S. Bauer , M. Bebronne , B. Behnke , M. Bejger , M. G. Beker , A. S. Bell , C. Bell , I. Belopolski , G. Bergmann , J. M. Berliner , D. Bersanetti , A. Bertolini , D. Bessis , J. Betzwieser , P. T. Beyersdorf , T. Bhadbhade , I. A. Bilenko , G. Billingsley , J. Birch , S. Biscans , M. Bitossi , M. A. Bizouard , E. Black , J. K. Blackburn , L. Blackburn , D. Blair , M. Blom , O. Bock , T. P. Bodiya , M. Boer , C. Bogan , C. Bond , F. Bondu , L. Bonelli , R. Bonnand , R. Bork , M. Born , V. Boschi , S. Bose , L. Bosi , J. Bowers , C. Bradaschia , P. R. Brady , V. B. Braginsky , M. Branchesi , C. A. Brannen , J. E. Brau , J. Breyer , T. Briant , D. O. Bridges , A. Brillet , M. Brinkmann , V. Brisson , M. Britzger , A. F. Brooks , D. A. Brown , D. D. Brown , F. Brückner , T. Bulik , H. J. Bulten , A. Buonanno , D. Buskulic , C. Buy , R. L. Byer , L. Cadonati , G. Cagnoli , J. Calderó. Bustillo , E. Calloni , J. B. Camp , P. Campsie , K. C. Cannon , B. Canuel , J. Cao , C. D. Capano , F. Carbognani , L. Carbone , S. Caride , A. Castiglia , S. Caudill , M. Cavaglià , F. Cavalier , R. Cavalieri , G. Cella , C. Cepeda , E. Cesarini , R. Chakraborty , T. Chalermsongsak , S. Chao , P. Charlton , E. Chassande-Mottin , X. Chen , Y. Chen , A. Chincarini , A. Chiummo , H. S. Cho , J. Chow , N. Christensen , Q. Chu , S. S. Y. Chua , S. Chung , G. Ciani , F. Clara , D. E. Clark , J. A. Clark , F. Cleva , E. Coccia , P. -F. Cohadon , A. Colla , M. Colombini , M. Constanci. , A. Conte , D. Cook , T. R. Corbitt , M. Cordier , N. Cornish , A. Corsi , C. A. Costa , M. W. Coughlin , J. -P. Coulon , S. Countryman , P. Couvares , D. M. Coward , M. Cowart , D. C. Coyne , K. Craig , J. D. E. Creighton , T. D. Creighton , S. G. Crowder , A. Cumming , L. Cunningham , E. Cuoco , K. Dahl , T. Da. Canton , M. Damjanic , S. L. Danilishin , S. D'Antonio , K. Danzmann , V. Dattilo , B. Daudert , H. Daveloza , M. Davier , G. S. Davies , E. J. Daw , R. Day , T. Dayanga , G. Debreczeni , J. Degallaix , E. Deleeuw , S. Deléglise , W. De. Pozzo , T. Denker , T. Dent , H. Dereli , V. Dergachev , R. T. DeRosa , R. D. Rosa , R. DeSalvo , S. Dhurandhar , M. Díaz , A. Dietz , L. D. Fiore , A. D. Lieto , I. D. Palma , A. D. Virgilio , K. Dmitry , F. Donovan , K. L. Dooley , S. Doravari , M. Drago , R. W. P. Drever , J. C. Driggers , Z. Du , J. -C. Dumas , S. Dwyer , T. Eberle , M. Edwards , A. Effler , P. Ehrens , J. Eichholz , S. S. Eikenberry , G. Endrőczi , R. Essick , T. Etzel , K. Evans , M. Evans , T. Evans , M. Factourovich , V. Fafone , S. Fairhurst , Q. Fang , B. Farr , W. Farr , M. Favata , D. Fazi , H. Fehrmann , D. Feldbaum , I. Ferrante , F. Ferrini , F. Fidecaro , L. S. Finn , I. Fiori , R. Fisher , R. Flaminio , E. Foley , S. Foley , E. Forsi , N. Fotopoulos , J. -D. Fournier , S. Franco , S. Frasca , F. Frasconi , M. Frede , M. Frei , Z. Frei , A. Freise , R. Frey , T. T. Fricke , P. Fritschel , V. V. Frolov , M. -K. Fujimoto , P. Fulda , M. Fyffe , J. Gair , L. Gammaitoni , J. Garcia , F. Garufi , N. Gehrels , G. Gemme , E. Genin , A. Gennai , L. Gergely , S. Ghosh , J. A. Giaime , S. Giampanis , K. D. Giardina , A. Giazotto , S. 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R. Iyer , K. Izumi , M. Jacobson , E. James , H. Jang , Y. J. Jang , P. Jaranowski , F. Jiménez-Forteza , W. W. Johnson , D. I. Jones , D. Jones , R. Jones , R. J. G. Jonker , L. Ju , Hari. K , P. Kalmus , V. Kalogera , S. Kandhasamy , G. Kang , J. B. Kanner , M. Kasprzack , R. Kasturi , E. Katsavounidis , W. Katzman , H. Kaufer , K. Kaufman , K. Kawabe , S. Kawamura , F. Kawazoe , F. Kéfélian , D. Keitel , D. B. Kelley , W. Kells , D. G. Keppel , A. Khalaidovski , F. Y. Khalili , E. A. Khazanov , B. K. Kim , C. Kim , K. Kim , N. Kim , W. Kim , Y. -M. Kim , E. King , P. J. King , D. L. Kinzel , J. S. Kissel , S. Klimenko , J. Kline , S. Koehlenbeck , K. Kokeyama , V. Kondrashov , S. Koranda , W. Z. Korth , I. Kowalska , D. Kozak , A. Kremin , V. Kringel , B. Krishnan , A. Królak , C. Kucharczyk , S. Kudla , G. Kuehn , A. Kumar , D. Nand. Kumar , P. Kumar , R. Kumar , R. Kurdyumov , P. Kwee , M. Landry , B. Lantz , S. Larson , P. D. Lasky , C. Lawrie , A. Lazzarini , P. Leaci , E. O. 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Vincent-Finley , J. -Y. Vinet , S. Vitale , S. Vitale , B. Vlcek , T. Vo , H. Vocca , C. Vorvick , W. D. Vousden , D. Vrinceanu , S. P. Vyachanin , A. Wade , L. Wade , M. Wade , S. J. Waldman , M. Walker , L. Wallace , Y. Wan , J. Wang , M. Wang , X. Wang , A. Wanner , R. L. Ward , M. Was , B. Weaver , L. -W. Wei , M. Weinert , A. J. Weinstein , R. Weiss , T. Welborn , L. Wen , P. Wessels , M. West , T. Westphal , K. Wette , J. T. Whelan , D. J. White , B. F. Whiting , S. Wibowo , K. Wiesner , C. Wilkinson , L. Williams , R. Williams , T. Williams , J. L. Willis , B. Willke , M. Wimmer , L. Winkelmann , W. Winkler , C. C. Wipf , H. Wittel , G. Woan , J. Worden , J. Yablon , I. Yakushin , H. Yamamoto , C. C. Yancey , H. Yang , D. Yeaton-Massey , S. Yoshida , H. Yum , M. Yvert , A. Zadrożny , M. Zanolin , J. -P. Zendri , F. Zhang , L. Zhang , C. Zhao , H. Zhu , X. J. Zhu , N. Zotov , M. E. Zucker , J. Zweizig

One potential factor that could impede searches for the stochastic gravitational-wave background (SGWB), arising from the incoherent superposition of a multitude of weak and unresolvable gravitational-wave signals in the Universe, is…

General Relativity and Quantum Cosmology · Physics 2025-10-16 Stavros Venikoudis , Federico De Lillo , Kamiel Janssens , Jishnu Suresh , Giacomo Bruno

After the first direct detection of gravitational waves (GW), detection of stochastic background of GWs is an important next step, and the first GW event suggests that it is within the reach of the second-generation ground-based GW…

Instrumentation and Methods for Astrophysics · Physics 2017-07-19 Yoshiaki Himemoto , Atsushi Taruya

Is your stochastic signal really detectable?

Separating a stochastic gravitational wave background (SGWB) from noise is a challenging statistical task. One approach to establishing a detection criterion for the SGWB is using Bayesian evidence. If the evidence ratio (Bayes factor)…

Instrumentation and Methods for Astrophysics · Physics 2025-09-17 Federico Pozzoli , Jonathan Gair , Riccardo Buscicchio , Lorenzo Speri

Effect of noise characterization on the detection of mHz stochastic gravitational waves

Pulsar timing arrays' hint for a stochastic gravitational-wave background (SGWB) leverages the expectations of a future detection in the millihertz band, particularly with the LISA space mission. However, finding an SGWB with a single…

General Relativity and Quantum Cosmology · Physics 2026-02-12 Nikolaos Karnesis , Quentin Baghi , Jean-Baptiste Bayle , Nikiforos Galanis

One of the most ambitious goals of gravitational-wave astronomy is to observe the stochastic gravitational-wave background. Correlated noise in two or more detectors can introduce a systematic error, which limits the sensitivity of…

Instrumentation and Methods for Astrophysics · Physics 2013-08-27 Eric Thrane , Nelson Christensen , Robert Schofield

Spectrogram correlated stacking: A novel time-frequency domain analysis of the Stochastic Gravitational Wave Background

The astrophysical stochastic gravitational wave background (SGWB) originates from numerous faint sub-threshold gravitational wave (GW) signals arising from the coalescing binary compact objects. This background is expected to be discovered…

General Relativity and Quantum Cosmology · Physics 2024-03-05 Ramit Dey , Luís Felipe Longo Micchi , Suvodip Mukherjee , Niayesh Afshordi

Direct detection of gravitational waves (GWs) from compact binary systems suggests that the merger rate of such events is large, and the sum of their GWs can be viewed as stochastic signals. Because of its random nature, cross-correlating…

Instrumentation and Methods for Astrophysics · Physics 2019-10-30 Yoshiaki Himemoto , Atsushi Taruya

Einstein Telescope (ET) is a proposed next-generation Gravitational Wave (GW) interferometer designed to detect a large number of astrophysical and cosmological sources with unprecedented sensitivity. A key target for ET is the detection of…

General Relativity and Quantum Cosmology · Physics 2025-01-17 Ilaria Caporali , Giulia Capurri , Walter Del Pozzo , Angelo Ricciardone , Lorenzo Valbusa Dall'Armi

Parameter Estimation in Searches for the Stochastic Gravitational-Wave Background

The stochastic gravitational-wave background (SGWB) is expected to arise from the superposition of many independent and unresolved gravitational-wave signals of either cosmological or astrophysical origin. The spectral content of the SGWB…

Cosmology and Nongalactic Astrophysics · Physics 2013-08-27 Vuk Mandic , Eric Thrane , Stefanos Giampanis , Tania Regimbau

Detecting stochastic gravitational wave background from cosmic strings with next-generation detector networks: Component separation based on a multi-source astrophysical foreground noise model

Detecting stochastic gravitational wave background (SGWB) from cosmic strings is crucial for unveiling the evolutionary laws of the early universe and validating non-standard cosmological models. This study presents the first systematic…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-18 Geng-Chen Wang , Hong-Bo Jin , Xin Zhang

How to Constrain the Stochastic Gravitational Wave Background with Multi-Frequency Detections

Gravitational wave (GW) observations probe both a diffuse, stochastic gravitational wave background (SGWB) as well as individual cataclysmic events such as the merger of two compact objects. The detection and description of the…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-28 Eleanor Gleave , Andrew Jaffe

Subtraction of correlated noise in global networks of gravitational-wave interferometers

The recent discovery of merging black holes suggests that a stochastic gravitational-wave background is within reach of the advanced detector network operating at design sensitivity. However, correlated magnetic noise from Schumann…

General Relativity and Quantum Cosmology · Physics 2016-11-23 Michael W. Coughlin , Nelson L. Christensen , Rosario De Rosa , Irene Fiori , Mark Gołkowski , Melissa Guidry , Jan Harms , Jerzy Kubisz , Andrzej Kulak , Janusz Mlynarczyk , Federico Paoletti , Eric Thrane

Separating deterministic and stochastic gravitational wave signals in realistic pulsar timing array datasets

Recent observations by pulsar timing arrays indicate the presence of gravitational wave signals, likely from supermassive black hole binaries. These binaries can produce two types of signals: a stochastic gravitational wave background (GWB)…

High Energy Astrophysical Phenomena · Physics 2025-02-12 Irene Ferranti , Golam Shaifullah , Aurelien Chalumeau , Alberto Sesana

Revisiting Stochastic Gravitational-wave Background in the Strong Signal Case

Weak-signal limit is often used in estimating stochastic gravitational-wave background (SGWB) intensities. This approximation fails and the signal-to-noise ratio (SNR) can be much weaker when background signals are loud compared to the…

General Relativity and Quantum Cosmology · Physics 2024-08-22 Zheng-Cheng Liang , Zhi-Yuan Li , En-Kun Li , Jian-dong Zhang , Yi-Ming Hu

Subtracting Compact Binary Foregrounds to Search for Subdominant Gravitational-Wave Backgrounds in Next-Generation Ground-Based Observatories

Stochastic gravitational-wave backgrounds (SGWBs) derive from the superposition of numerous individually unresolved gravitational-wave (GW) signals. Detecting SGWBs provides us with invaluable information about astrophysics, cosmology, and…

General Relativity and Quantum Cosmology · Physics 2023-09-26 Bei Zhou , Luca Reali , Emanuele Berti , Mesut Çalışkan , Cyril Creque-Sarbinowski , Marc Kamionkowski , B. S. Sathyaprakash

A cross-correlation technique in wavelet domain for detection of stochastic gravitational waves

Stochastic gravitational waves (SGW) can be detected by measuring a cross-correlation of two or more gravitational wave (GW) detectors. In this paper we describe an optimal SGW search technique in the wavelet domain. It uses a sign…

General Relativity and Quantum Cosmology · Physics 2007-05-23 S. Klimenko , G. Mitselmakher , A. Sazonov

Figures of merit for a stochastic gravitational-wave background measurement by LISA: implications of LISA Pathfinder noise correlations

An important goal of the Laser Interferometer Space Antenna (LISA) is to observe a stochastic gravitational-wave background (SGWB). A study of possible correlated noise in LISA is relevant to establish limits for this future measurement. To…

General Relativity and Quantum Cosmology · Physics 2022-09-30 Guillaume Boileau , Nelson Christensen , Renate Meyer

Identifying the Quadrupolar Nature of Gravitational Wave Background through Space-based Missions

The stochastic gravitational wave background (SGWB) consists of an incoherent collection of waves from both astrophysical and cosmological sources. To distinguish the SGWB from noise, it is essential to verify its quadrupolar nature,…

General Relativity and Quantum Cosmology · Physics 2025-08-22 Yifan Chen , Yuxiang Liu , Jing Shu , Bin Xu , Xiao Xue , Yanjie Zeng