Constraints on the Hubble constant from supernova Refsdal's reappearance

• 成果类型: Article
• 署名作者: Kelly, Patrick L.; Rodney, Steven; Treu, Tommaso; Oguri, Masamune; Chen, Wenlei; Zitrin, Adi; Birrer, Simon; Bonvin, Vivien; Dessart, Luc; Diego, Jose M.; Filippenko, Alexei V.; Foley, Ryan J.; Gilman, Daniel; Hjorth, Jens; Jauzac, Mathilde; Mandel, Kaisey; Millon, Martin; Pierel, Justin; Sharon, Keren; Thorp, Stephen; Williams, Liliya; Broadhurst, Tom; Dressler, Alan; Graur, Or; Jha, Saurabh; McCully, Curtis; Postman, Marc; Schmidt, Kasper Borello; Tucker, Brad E.; von der Linden, Anja
• 署名单位: University of Minnesota System; University of Minnesota Twin Cities; University of South Carolina System; University of South Carolina Columbia; University of California System; University of California Los Angeles; Chiba University; University of Tokyo; University of Tokyo; Ben-Gurion University of the Negev; Stanford University; State University of New York (SUNY) System; Stony Brook University; Swiss Federal Institutes of Technology Domain; Ecole Polytechnique Federale de Lausanne; Centre National de la Recherche Scientifique (CNRS); Sorbonne Universite; Consejo Superior de Investigaciones Cientificas (CSIC); Universidad de Cantabria; CSIC - Instituto de Fisica de Cantabria (IFCA); Universidad de Cantabria; University of California System; University of California Berkeley; University of California System; University of California Berkeley; University of California System; University of California Santa Cruz; University of Toronto; University of Copenhagen; Niels Bohr Institute; Durham University; Durham University; University of Kwazulu Natal; University of Kwazulu Natal; University of Cambridge; University of Cambridge; University of Cambridge; Space Telescope Science Institute; University of Michigan System; University of Michigan; Stockholm University; Oskar Klein Centre; Basque Foundation for Science; University of Basque Country; Carnegie Institution for Science; University of Portsmouth; American Museum of Natural History (AMNH); Rutgers University System; Rutgers University New Brunswick; University of California System; University of California Santa Barbara; Leibniz Association; Leibniz Institut fur Astrophysik Potsdam (AIP); Australian National University; Australian National University
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-11504
• DOI: 10.1126/science.abh1322
• 发表日期: 2023-06-09
• 关键词: massive galaxy clusters; time delays; giants; images; masses

摘要

The gravitationally lensed supernova Refsdal appeared in multiple images produced through gravitational lensing by a massive foreground galaxy cluster. After the supernova appeared in 2014, lens models of the galaxy cluster predicted that an additional image of the supernova would appear in 2015, which was subsequently observed. We use the time delays between the images to perform a blinded measurement of the expansion rate of the Universe, quantified by the Hubble constant (H-0). Using eight cluster lens models, we infer H-0 = 64:8(+4:4) (-4:3) kilometers per second per megaparsec. Using the two models most consistent with the observations, we find H-0 = 66:6(+4:1) (-3:3) kilometers per second per megaparsec. The observations are best reproduced by models that assign dark-matter halos to individual galaxies and the overall cluster.