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  • Kelly, Patrick L. (author)

Constraints on the Hubble constant from supernova Refsdal's reappearance

  • Article/chapterEnglish2023

Publisher, publication year, extent ...

  • 2023
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:su-227685
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-227685URI
  • https://doi.org/10.1126/science.abh1322DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • 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 (H0). Using eight cluster lens models, we infer kilometers per second per megaparsec. Using the two models most consistent with the observations, we find kilometers per second per megaparsec. The observations are best reproduced by models that assign dark-matter halos to individual galaxies and the overall cluster.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Rodney, Steven (author)
  • Treu, Tommaso (author)
  • Oguri, Masamune (author)
  • Chen, Wenlei (author)
  • Zitrin, Adi (author)
  • Birrer, Simon (author)
  • Bonvin, Vivien (author)
  • Dessart, Luc (author)
  • Diego, Jose M. (author)
  • Filippenko, Alexei V. (author)
  • Foley, Ryan J. (author)
  • Gilman, Daniel (author)
  • Hjorth, Jens (author)
  • Jauzac, Mathilde (author)
  • Mandel, Kaisey (author)
  • Millon, Martin (author)
  • Pierel, Justin (author)
  • Sharon, Keren (author)
  • Thorp, Stephen,1996-Stockholms universitet,Oskar Klein-centrum för kosmopartikelfysik (OKC),Fysikum,Institute of Astronomy and Kavli Institute for Cosmology, UK(Swepub:su)stth6288 (author)
  • Williams, Liliya (author)
  • Broadhurst, Tom (author)
  • Dressler, Alan (author)
  • Graur, Or (author)
  • Jha, Saurabh (author)
  • McCully, Curtis (author)
  • Postman, Marc (author)
  • Schmidt, Kasper Borello (author)
  • Tucker, Brad E. (author)
  • von der Linden, Anja (author)
  • Stockholms universitetOskar Klein-centrum för kosmopartikelfysik (OKC) (creator_code:org_t)

Related titles

  • In:Science380:66490036-80751095-9203

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