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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/29660
Title: Multiple images of a highly magnified supernova formed by an early-type cluster galaxy lens
Authors: Kelly, Patrick L.
Rodney, Steven A.
Treu, Tommaso
Foley, Ryan J.
Brammer, Gabriel
Schmidt, Kasper B.
Zitrin, Adi
Sonnenfeld, Alessandro
Strolger, Louis-Gregory
Graur, Or
Filippenko, Alexei V.
Jha, Saurabh W.
Riess, Adam G.
Bradac, Marusa
Weiner, Benjamin J.
Scolnic, Daniel
Malkan, Matthew A.
von der Linden, Anja
Trenti, Michele
Hjorth, Jens
Gavazzi, Raphael
FONTANA, Adriano 
Merten, Julian C.
McCully, Curtis
Jones, Tucker
Postman, Marc
Dressler, Alan
Patel, Brandon
Cenko, S. Bradley
Graham, Melissa L.
Tucker, Bradley E.
Issue Date: 2015
Journal: SCIENCE 
Number: 347
Issue: 6226
First Page: 1123
Abstract: In 1964, Refsdal hypothesized that a supernova whose light traversed multiple paths around a strong gravitational lens could be used to measure the rate of cosmic expansion. We report the discovery of such a system. In Hubble Space Telescope imaging, we have found four images of a single supernova forming an Einstein cross configuration around a redshift z = 0.54 elliptical galaxy in the MACS J1149.6+2223 cluster. The cluster’s gravitational potential also creates multiple images of the z = 1.49 spiral supernova host galaxy, and a future appearance of the supernova elsewhere in the cluster field is expected. The magnifications and staggered arrivals of the supernova images probe the cosmic expansion rate, as well as the distribution of matter in the galaxy and cluster lenses.
URI: http://hdl.handle.net/20.500.12386/29660
URL: https://science.sciencemag.org/content/347/6226/1123
ISSN: 0036-8075
DOI: 10.1126/science.aaa3350
Bibcode ADS: 2015Sci...347.1123K
Fulltext: reserved
Appears in Collections:1.01 Articoli in rivista

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