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Related papers: ET sensitivity to the anisotropic Stochastic Gravi…

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Search sensitivity to a stochastic gravitational-wave background (SGWB) is enhanced by cross-correlating detector signals. However, one of the most serious concerns is the environmental noise correlated between detectors. The global…

General Relativity and Quantum Cosmology · Physics 2023-04-05 Yoshiaki Himemoto , Atsushi Nishizawa , Atsushi Taruya

Einstein gravitational-wave Telescope (ET) is a design study funded by the European Commission to explore the technological challenges of and scientific benefits from building a third generation gravitational wave detector. The three-year…

General Relativity and Quantum Cosmology · Physics 2012-06-05 B. Sathyaprakash , M. Abernathy , F. Acernese , P. Amaro-Seoane , N. Andersson , K. Arun , F. Barone , B. Barr , M. Barsuglia , M. Beker , N. Beveridge , S. Birindelli , S. Bose , L. Bosi , S. Braccini , C. Bradaschia , T. Bulik , E. Calloni , G. Cella , E. Chassande-Mottin , S. Chelkowski , A. Chincarini , J. Clark , E. Coccia , C. Colacino , J. Colas , A. Cumming , L. Cunningham , E. Cuoco , S. Danilishin , K. Danzmann , R. De. Salvo , T. Dent , R. De. Rosa , L. Di. Fiore , A. Di. Virgilio , M. Doets , V. Fafone , P. Falferi , R. Flaminio , J. Franc , F. Frasconi , A. Freise , D. Friedrich , P. Fulda , J. Gair , G. Gemme , E. Genin , A. Gennai , A. Giazotto , K. Glampedakis , C. Gräf , M. Granata , H. Grote , G. Guidi , A. Gurkovsky , G. Hammond , M. Hannam , J. Harms , D. Heinert , M. Hendry , I. Heng , E. Hennes , S. Hild , J. Hough , S. Husa , S. Huttner , G. Jones , F. Khalili , K. Kokeyama , K. Kokkotas , B. Krishnan , T. G. F. Li , M. Lorenzini , H. Lück , E. Majorana , I. Mandel , V. Mandic , M. Mantovani , I. Martin , C. Michel , Y. Minenkov , N. Morgado , S. Mosca , B. Mours , H. Müller-Ebhardt , P. Murray , R. Nawrodt , J. Nelson , R. Oshaughnessy , C. D. Ott , C. Palomba , A. Paoli , G. Parguez , A. Pasqualetti , R. Passaquieti , D. Passuello , L. Pinard , W. Plastino , R. Poggiani , P. Popolizio , M. Prato , M. Punturo , P. Puppo , D. Rabeling , I. Racz , P. Rapagnani , J. Read , T. Regimbau , H. Rehbein , S. Reid , L. Rezzolla , F. Ricci , F. Richard , A. Rocchi , S. Rowan , A. Rüdiger , L. Santamaria , B. Sassolas , R. Schnabel , C. Schwarz , P. Seidel , A. Sintes , K. Somiya , F. Speirits , K. Strain , S. Strigin , P. Sutton , S. Tarabrin , A. Thüring , J. van den Brand , M van Veggel , C. Van Den Broeck , A. Vecchio , J. Veitch , F. Vetrano , A. Vicere , S. Vyatchanin , B. Willke , G. Woan , K. Yamamoto

Einstein Telescope (ET) is a 3rd generation gravitational-wave (GW) detector that is currently undergoing a design study. ET can detect millions of compact binary mergers up to redshifts 2-8. A small fraction of mergers might be observed in…

Cosmology and Nongalactic Astrophysics · Physics 2011-08-09 B. S. Sathyaprakash , Bernard Schutz , Chris Van Den Broeck

Recent studies have revealed the contribution of extragalactic DWD to the astrophysical SGWB could be detectable in the mHz regime by LISA. Conversely, the presence of this SGWB could hamper the detection of cosmological SGWB, which are one…

General Relativity and Quantum Cosmology · Physics 2025-11-05 Guillaume Boileau , Tristan Bruel , Alexandre Toubiana , Astrid Lamberts , Nelson Christensen

The stochastic gravitational-wave background (SGWB) from eccentric stellar-mass binary black holes (SBBHs) holds crucial clues to their origins. For the first time, we employ a Bayesian framework to assess the detectability and…

General Relativity and Quantum Cosmology · Physics 2025-10-30 Zheng-Cheng Liang , Zhi-Yuan Li , Yi-Ming Hu

With a fantastic sensitivity improving significantly over the advanced GW detectors, Einstein Telescope (ET) will be able to observe hundreds of thousand inspiralling double compact objects per year. By virtue of gravitational lensing…

High Energy Astrophysical Phenomena · Physics 2018-03-07 Xuheng Ding , Marek Biesiada , Zong-Hong Zhu

The paucity of observed supermassive black hole binaries (SMBHBs) may imply that the gravitational wave background (GWB) from this population is anisotropic, rendering existing analyses sub-optimal. We present the first constraints on the…

The Einstein Telescope is the next-generation gravitational wave interferometer which, compared to current detectors, will enable the observation of gravitational signals at lower frequencies with a sensitivity improved by approximately two…

Instrumentation and Detectors · Physics 2025-08-12 Federico Armato , Barbara Garaventa , Andrea Chincarini

We study the observation of stochastic gravitational-wave background (SGWB) made by pulsar-timing arrays in the spherical harmonic space. Instead of using the Shapiro time delay, we keep the Sachs-Wolfe line-of-sight integral for the timing…

General Relativity and Quantum Cosmology · Physics 2022-09-14 Guo-Chin Liu , Kin-Wang Ng

The stochastic gravitational wave background (SGWB) is one of the main detection targets for future millihertz space-borne gravitational-wave observatories such as the \ac{LISA}, TianQin, and Taiji. For a single LISA-like detector, a…

General Relativity and Quantum Cosmology · Physics 2025-11-10 Jun Cheng , En-Kun Li , Jianwei Mei

A stochastic gravitational wave background (SGWB) will affect the CMB anisotropies via weak lensing. Unlike weak lensing due to large scale structure which only deflects photon trajectories, a SGWB has an additional effect of rotating the…

Cosmology and Nongalactic Astrophysics · Physics 2016-09-21 Shabbir Shaikh , Suvodip Mukherjee , Aditya Rotti , Tarun Souradeep

We perform the first search for an isotropic non-tensorial gravitational-wave background (GWB) allowed in general metric theories of gravity in the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) 12.5-year data set.…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-28 Zu-Cheng Chen , Chen Yuan , Qing-Guo Huang

We investigate the cross-correlation between astrometric and timing-residual observables for distant sources, such as pulsars and galaxies, and equivalent observables for nearby solar system bodies. Using the unified spin-weighted formalism…

General Relativity and Quantum Cosmology · Physics 2025-10-31 Elias Fink , Carlo Contaldi , Giorgio Mentasti

The stochastic gravitational-wave background (SGWB) created by astrophysical sources in the nearby Universe is likely to be anisotropic. Upper limits on SGWB anisotropy have been produced for all major data-taking runs by the ground-based…

General Relativity and Quantum Cosmology · Physics 2023-07-18 Deepali Agarwal , Jishnu Suresh , Sanjit Mitra , Anirban Ain

Third-generation ground-based gravitational wave detectors are expected to observe $\mathcal{O}(10^5)$ of overlapping signals per year from a multitude of astrophysical sources that will be computationally challenging to resolve…

General Relativity and Quantum Cosmology · Physics 2025-10-15 G. Giarda , A. I. Renzini , C. Pacilio , D. Gerosa

We present the results of simulated injections testing the first Bayesian search-pipeline capable of investigating the angular-structure of a gravitational-wave (GW) background influencing pulsar signals. A stochastic background of GWs from…

General Relativity and Quantum Cosmology · Physics 2013-10-30 Stephen R. Taylor , Jonathan R. Gair

The Einstein Telescope (ET), a future third-generation gravitational wave detector will have detection sensitivity for gravitational wave signals down to 1 Hz. This improved low-frequency sensitivity of the ET will allow the observation of…

High Energy Astrophysical Phenomena · Physics 2022-12-19 Neha Singh , Tomasz Bulik

Rapid detection and follow-up of electromagnetic (EM) counterparts to gravitational wave (GW) signals from binary neutron star (BNS) mergers are essential for constraining source properties and probing the physics of relativistic…

High Energy Astrophysical Phenomena · Physics 2025-12-08 Daniel Skorohod , Ofek Birnholtz

We search NANOGrav's 12.5-year data set for evidence of a gravitational wave background (GWB) with all the spatial correlations allowed by general metric theories of gravity. We find no substantial evidence in favor of the existence of such…