Euclid Quick Data Release (Q1)
N.E.P. LinesInstitute of Cosmology and Gravitation, University of PortsmouthT.E CollettInstitute of Cosmology and Gravitation, University of PortsmouthM. WalmsleyDavid A. Dunlap Department of Astronomy & Astrophysics, University of TorontoK. RojasUniversity of Applied Sciences and Arts of Northwestern Switzerland, School of EngineeringTian LiInstitute of Cosmology and Gravitation, University of PortsmouthL. LeuzziDipartimento di Fisica e Astronomia “Augusto Righi” – Alma Mater Studiorum Università di BolognaA. Manjón-GarcíaDepartamento Física Aplicada, Universidad Politécnica de CartagenaS.H VinckenUniversity of Applied Sciences and Arts of Northwestern Switzerland, School of EngineeringJ. WildeInstitut de Ciències del Cosmos (ICCUB), Universitat de Barcelona (IEEC-UB)Paul H. HollowayDepartment of Physics, Oxford UniversityA. VermaDepartment of Physics, Oxford UniversityR. B. MetcalfINAF-Osservatorio di Astrofisica e Scienza dello Spazio di BolognaI. T. AndikaTechnical University of Munich, TUM School of Natural Sciences, Physics DepartmentAndréia Cristina de MeloTechnical University of Munich, TUM School of Natural Sciences, Physics DepartmentM. MelchiorUniversity of Applied Sciences and Arts of Northwestern Switzerland, School of EngineeringH. Domínguez SánchezInstituto de Física de CantabriaA. Díaz‐SánchezDepartamento Física Aplicada, Universidad Politécnica de CartagenaJ.A. Acevedo BarrosoInstitute of Physics, Laboratory of Astrophysics, Ecole Polytechnique Fédérale de Lausanne (EPFL)B. ClémentSCITAS, Ecole Polytechnique Fédérale de Lausanne (EPFL)Coleman KrawczykInstitute of Cosmology and Gravitation, University of PortsmouthR Pearce-CaseySchool of Physical Sciences, The Open UniversityS. SerjeantSchool of Physical Sciences, The Open UniversityF. CourbinInstitució Catalana de Recerca i Estudis Avançats (ICREA)G. DespaliINFN-Sezione di BolognaR. GavazziSorbonne UniversitéS. SchuldtINAF-IASF MilanoH. DegaudenziDepartment of Astronomy, University of GenevaL.R EckerMax Planck Institute for Extraterrestrial PhysicsWolfgang EnziInstitute of Cosmology and Gravitation, University of PortsmouthKyle FinnerA. GalanTechnical University of Munich, TUM School of Natural Sciences, Physics DepartmentC. GiocoliINFN-Sezione di BolognaNatalie B HoggLaboratoire Univers et Particules de MontpellierK. JahnkęMax-Planck-Institut für AstronomieSandor KrukESAC/ESAG. MahlerDepartment of Physics, Centre for Extragalactic Astronomy, Durham UniversityA. MoreKavli Institute for the Physics and Mathematics of the Universe (WPI), University of TokyoB.C NagamKapteyn Astronomical Institute, University of GroningenJ. C. PearsonSchool of Physical Sciences, The Open UniversityA Sainz de MurietaInstitute of Cosmology and Gravitation, University of PortsmouthClaudia ScarlataMinnesota Institute for Astrophysics, University of MinnesotaDominique SluseSTAR Institute, University of LiègeAlessandro SonnenfeldDepartment of Astronomy, School of Physics and Astronomy, Shanghai Jiao Tong UniversityChiara SpinielloDepartment of Physics, Oxford UniversityT.T. ThaiNational Astronomical Observatory of JapanC. TortoraINAF-Osservatorio Astronomico di CapodimonteL. UliviUniversity of TrentoLuke WeisenbachInstitute of Cosmology and Gravitation, University of PortsmouthMiguel ZumalacárreguiMax Planck Institute for Gravitational Physics (Albert Einstein Institute)N. AghanimUniversité Paris-SaclayB. AltieriESAC/ESAA. AmaraSchool of Mathematics and Physics, University of SurreyS. AndreonINAF-Osservatorio Astronomico di BreraN. AuricchioINAF-Osservatorio di Astrofisica e Scienza dello Spazio di BolognaH. AusselCEA Paris-SaclayC. BaccigalupiINFN, Sezione di TriesteM. BaldiDipartimento di Fisica e Astronomia, Università di BolognaA. BalestraINAF-Osservatorio Astronomico di PadovaS. BardelliINAF-Osservatorio di Astrofisica e Scienza dello Spazio di BolognaP. BattagliaINAF-Osservatorio di Astrofisica e Scienza dello Spazio di BolognaR. BenderUniversitäts-Sternwarte München, Fakultät für Physik, Ludwig-Maximilians-Universität MünchenFrancis BernardeauInstitut d’Astrophysique de Paris, UMR 7095, CNRS, and Sorbonne UniversitéA. BivianoIFPU, Institute for Fundamental Physics of the UniverseA BonchiUnited Kingdom Space AgencyD. BoninoINAF-Osservatorio Astrofisico di TorinoE. BranchiniINAF-Osservatorio Astronomico di BreraM. BresciaDepartment of Physics “E. Pancini”, University Federico IIJ. BrinchmannInstituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUPS. CameraINAF-Osservatorio Astrofisico di TorinoG Cañas-HerreraInstitute Lorentz, Leiden UniversityV. CapobiancoINAF-Osservatorio Astrofisico di TorinoC. CarboneINAF-IASF MilanoV.F CardoneINFN-Sezione di RomaJ. CarreteroPort d’Informació Científica, Campus UABS. CasasInstitute for Theoretical Particle Physics and Cosmology (TTK), RWTH Aachen UniversityM. CastellanoNational Institute for AstrophysicsG. CastignaniINAF-Osservatorio di Astrofisica e Scienza dello Spazio di BolognaS. CavuotiINFN section of NaplesK. C. ChambersInstitute for Astronomy, University of HawaiiA. CimattiDipartimento di Fisica e Astronomia “Augusto Righi” – Alma Mater Studiorum Università di BolognaC. Colodro-CondeInstituto de Astrofísica de CanariasG. CongedoUniversity of EdinburghC.J. ConseliceJodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of ManchesterL. ConversiEuropean Space Agency/ESRINY. CopinUniversité Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, UMR 5822A. CostilleAix-Marseille Université, CNRS, CNES, LAMH. M. CourtoisUCB Lyon 1, CNRS/IN2P3, IUF, IP2I LyonM. CropperMullard Space Science Laboratory, University College LondonA. Da SilvaInstituto de Astrofísica e Ciências do Espaço, Faculdade de Ciências, Universidade de LisboaG. De LuciaINAF-Osservatorio Astronomico di TriesteA. M. Di GiorgioINAF-Istituto di Astrofisica e Planetologia SpazialiC. DoldingMullard Space Science Laboratory, University College LondonH. DoleInstitut d'Astrophysique SpatialeF. DubathDepartment of Astronomy, University of GenevaC. A. J. DuncanJodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of ManchesterX. DupacESAC/ESAS. EscoffierAix-Marseille Université, CNRS/IN2P3, CPPMM. FabriciusMax Planck Institute for Extraterrestrial PhysicsM. FarinaINAF-Istituto di Astrofisica e Planetologia SpazialiR. FarinelliINAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna
2025en
ABI
Abstract
Strong gravitational lensing has the potential to provide a powerful probe of astrophysics and cosmology, but fewer than 1000 strong lenses have been confirmed so far. With a 0 . ″ 16 resolution covering a third of the sky, the Euclid telescope will revolutionise the identification of strong lenses, with 170 000 lenses forecasted to be discovered amongst the 1.5 billion galaxies it will observe. We present an analysis of the performance of five machine-learning models at finding strong gravitational lenses in the quick release of Euclid data (Q1) covering 63 deg 2 . The models have been validated by citizen scientists and expert visual inspection. We focus on the best-performing network: a fine-tuned version of the Zoobot pretrained model originally trained to classify galaxy morphologies in heterogeneous astronomical imaging surveys. Of the one million Q1 objects that Zoobot was tasked to find strong lenses within, the top 1000 ranked objects contain 122 grade A lenses (almost-certain lenses) and 41 grade B lenses (probable lenses). A deeper search with the five networks combined with visual inspection yielded 250 (247) grade A (B) lenses, of which 224 (182) are ranked in the top 20 000 by Zoobot . When extrapolated to the full Euclid survey, the highest ranked one million images will contain 75 000 grade A or B strong gravitational lenses.
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Citations and references
Cited by 20 references