Ordinary matter-including particles such as protons and neutrons-accounts for only about one sixth of all matter in the Universe. The rest is dark matter, which does not emit or absorb light but plays a fundamental role in galaxy and structure evolution. Because it interacts only through gravity, one of the most direct probes is weak gravitational lensing: the deflection of light from distant galaxies by intervening mass. Here we present an extremely detailed, wide-area weak-lensing mass map, covering 0.77 deg x 0.70 deg, using high-resolution imaging from the James Webb Space Telescope (JWST) as part of the COSMOS-Web survey. By measuring the shapes of 129 galaxies per square arcminute-many independently in the F115W and F150W bands-we achieve an angular resolution of 1.00 +/- 0.01 arcmin. Our map has more than twice the resolution of earlier Hubble Space Telescope maps, revealing how dark and luminous matter co-evolve across filaments, clusters, and under-densities. It traces mass features out to z ~ 2, including the most distant structure at z ~ 1.1. The sensitivity to high-redshift lensing constrains galaxy environments at the peak of cosmic star formation and sets a high-resolution benchmark for testing theories about the nature of dark matter and the formation of large-scale cosmic structure
- An ultra-high-resolution map of (dark) matter
- Diana ScognamiglioGavin Leroy - Durham UniversityDavid Harvey - École Polytechnique Fédérale de LausanneRichard MasseyJason Rhodes - Jet Propulsion LaboratoryHollis B Akins - The University of Texas at AustinMalte Brinch - Millenium Nucleus for Planet FormationEdward Berman - Northeastern UniversityCaitlin M Casey - University of California, Santa BarbaraNicole E Drakos - University of Hawaii at HiloAndreas L Faisst - California Institute of TechnologyMaximilien Franco - Centre National de la Recherche ScientifiqueLeo W.H Fung - Durham UniversityGhassem Gozaliasl - University of HelsinkiQiuhan He - University of GroningenHossein Hatamnia - University of California, RiversideEric Huff - Jet Propulsion LaboratoryNatalie B Hogg - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPMOlivier Ilbert - Laboratoire d’Astrophysique de MarseilleJeyhan S Kartaltepe - Rochester Institute of TechnologyAnton M Koekemoer - Space Telescope Science InstituteShouwen Jin - Technical University of DenmarkErini Lambrides - Goddard Space Flight CenterAlexie Leauthaud - University of California, Santa CruzZane D Lentz - Durham UniversityDaizhong Liu - Purple Mountain ObservatoryGuillaume MahlerClaudia MarastonCrystal L Martin - University of California, Santa BarbaraJacqueline Mccleary - Northeastern UniversityJames Nightingale - Newcastle UniversityBahram Mobasher - University of California, RiversideLouise Paquereau - Institut d'Astrophysique de ParisSandrine Pires - Centre National de la Recherche ScientifiqueBrant E Robertson - University of California, Santa CruzDavid B Sanders - University of Hawaii SystemClaudia ScarlataMarko Shuntov - University of CopenhagenGreta Toni - Heidelberg UniversityMaximilian von Wietersheim-Kramsta - Durham UniversityJohn R Weaver - University of Massachusetts Amherst
- Nature Astron
- 99189696309311
- Laboratoire Univers et Particules de Montpellier - LUPM
- English
- Journal article
- hal-05502025