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Title:iPTF16geu: A multiply imaged, gravitationally lensed type Ia supernova
Authors:Goobar, Ariel (Author)
Amanullah, Rahman (Author)
Kulkarni, S.R. (Author)
Petrushevska, Tanja (Author)
et al.
Files:This document has no files. This document may have a phisical copy in the library of the organization, check the status via COBISS. Link is opened in a new window
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:We report the discovery of a multiply-imaged gravitationally lensed Type Ia supernova, iPTF16geu, at redshift z = 0.409. This phenomenon could be iden- tified because the light from the stellar explosion was magnified more than fifty times by the curvature of space around matter in an intervening galaxy. We used high spatial resolution observations to resolve four images of the lensed supernova, approximately 0.300 from the center of the foreground galaxy. The observations probe a physical scale of ⇠1 kiloparsec, smaller than what is typical in other studies of extragalactic gravitational lensing. The large mag- nification and symmetric image configuration implies close alignment between the line-of-sight to the supernova and the lens. The relative magnifications of the four images provide evidence for sub-structures in the lensing galaxy.
Keywords:lensed supernova, strong lensing, galaxy lens, multiply-lensed supernova
Year of publishing:2017
Number of pages:36
Numbering:356, 6335
COBISS_ID:4998139  Link is opened in a new window
DOI:10.1126/science.aal2729 Link is opened in a new window
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Publisher:American Association for the Advancement of Science
Year of publishing:2017