Science with the Einstein Telescope: a comparison of different designs

Article Article scientifique Article Science with the Einstein Telescope: a comparison of different designs eng 2023-07-28 2023 author Branchesi Marica GSSI, Aquila author Maggiore Michele Geneva U., Dept. Theor. Phys. 134018 Département de physique théorique (FITEO) author Alonso David Oxford U. author Badger Charles King's Coll. London author Banerjee Biswajit GSSI, Aquila author Beirnaert Freija Gent U. author Belgacem Enis Geneva U. 866321 Département de physique théorique (FITEO) author Bhagwat Swetha Rome U. author Boileau Guillaume U. Antwerp (main) author Borhanian Ssohrab Jena U., TPI author Brown Daniel David MIT, Cambridge, LIGO author Chan Man Leong British Columbia U. author Cusin Giulia Paris, Inst. Astrophys. author Danilishin Stefan L. NIKHEF, Amsterdam author Degallaix Jerome Lyon, LMA author De Luca Valerio Pennsylvania U. author Dhani Arnab Penn State U., University Park, IGC author Dietrich Tim Potsdam U. author Dupletsa Ulyana GSSI, Aquila author Foffa Stefano Geneva U., Dept. Theor. Phys. 134440 Département de physique théorique (FITEO) author Franciolini Gabriele Rome U. author Freise Andreas Vrije U., Amsterdam author Gemme Gianluca INFN, Genoa author Goncharov Boris GSSI, Aquila author Ghosh Archisman Gent U. author Gulminelli Francesca LPC, Caen author Gupta Ish Penn State U., University Park, IGC author Gupta Pawan Kumar NIKHEF, Amsterdam author Harms Jan GSSI, Aquila author Hazra Nandini GSSI, Aquila author Hild Stefan NIKHEF, Amsterdam author Hinderer Tanja Utrecht U. author Heng Ik Siong Glasgow U. author Iacovelli Francesco 0000-0002-4875-5862 Geneva U., Dept. Theor. Phys. 947942 Département de physique théorique (FITEO) author Janquart Justin NIKHEF, Amsterdam author Janssens Kamiel U. Antwerp (main) author Jenkins Alexander C. University Coll. London author Kalaghatgi Chinmay NIKHEF, Amsterdam author Koroveshi Xhesika KIT, Karlsruhe author Li Tjonnie G.F. Leuven U. author Li Yufeng Beijing Normal U. author Loffredo Eleonora GSSI, Aquila author Maggio Elisa Potsdam, Max Planck Inst. author Mancarella Michele Geneva U., Dept. Theor. Phys. 812292 author Mapelli Michela Padua U., Astron. Dept. author Martinovic Katarina King's Coll. London author Maselli Andrea GSSI, Aquila author Meyers Patrick Caltech author Miller Andrew L. Leuven U. author Mondal Chiranjib LPC, Caen author Muttoni Niccolò Geneva U., Dept. Theor. Phys. 988380 Département de physique théorique (FITEO) author Narola Harsh NIKHEF, Amsterdam author Oertel Micaela LUTH, Meudon author Oganesyan Gor GSSI, Aquila author Pacilio Costantino Rome U. author Palomba Cristiano INFN, Rome author Pani Paolo Rome U. author Pasqualetti Antonio EGO, Pisa author Perego Albino Trento U. author Périgois Carole Padua U., Astron. Dept. author Pieroni Mauro CERN author Piccinni Ornella Juliana Barcelona, IFAE author Puecher Anna NIKHEF, Amsterdam author Puppo Paola INFN, Rome author Ricciardone Angelo Pisa U. author Riotto Antonio Walter Geneva U., Dept. Theor. Phys. 650982 Département de physique théorique (FITEO) author Ronchini Samuele GSSI, Aquila author Sakellariadou Mairi King's Coll. London author Samajdar Anuradha Potsdam U. author Santoliquido Filippo Padua U., Astron. Dept. author Sathyaprakash B.s. Penn State U., University Park, IGC author Steinlechner Jessica NIKHEF, Amsterdam author Steinlechner Sebastian NIKHEF, Amsterdam author Utina Andrei NIKHEF, Amsterdam author Van Den Broeck Chris NIKHEF, Amsterdam author Zhang Teng Birmingham U. 068 10.1088/1475-7516/2023/07/068 1475-7516 2303.15923 https://iopscience.iop.org/article/10.1088/1475-7516/2023/07/068 The Einstein Telescope (ET), the European project for a third-generation gravitational-wave detector, has a reference configuration based on a triangular shape consisting of three nested detectors with 10 km arms, where each detector has a 'xylophone' configuration made of an interferometer tuned toward high frequencies, and an interferometer tuned toward low frequencies and working at cryogenic temperature. Here, we examine the scientific perspectives under possible variations of this reference design. We perform a detailed evaluation of the science case for a single triangular geometry observatory, and we compare it with the results obtained for a network of two L-shaped detectors (either parallel or misaligned) located in Europe, considering different choices of arm-length for both the triangle and the 2L geometries. We also study how the science output changes in the absence of the low-frequency instrument, both for the triangle and the 2L configurations. We examine a broad class of simple 'metrics' that quantify the science output, related to compact binary coalescences, multi-messenger astronomy and stochastic backgrounds, and we then examine the impact of different detector designs on a more specific set of scientific objectives. Gravitational wave detectors Gravitational waves / experiments Gravitational waves / sources Detector: design Frequency: low Binary: coalescence Binary: compact Frequency: high Family: 3 Background: stochastic Geometry Triangulation Interferometer Einstein Telescope Gravitational radiation detector Observatory Network Cryogenics Temperature Dewey 500.2 37 Département de physique théorique 133 false Journal of cosmology and astroparticle physics 07 07 cc8ce7ca-8b96-4593-93b1-22fa072fe3e3 Article (Published version) Public Branchesi_2023_J._Cosmol._Astropart.pdf 16741453 application/pdf CC BY-4.0 212907a424cb96e2477d8daf85cadfe4e29e8fac1211f8d12a608657f9335d31 openAccess Faculté des sciences / Section de physique / Département de physique théorique

Title	Published in	Year	Views	Downloads

Science with the Einstein Telescope: a comparison of different designs	Journal of cosmology and astroparticle physics	2023	38	26
Nonlocal cosmological models and tests of modified gravity with gravitational waves		2020	528	174

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