iPTF16geu: A multiply imaged, gravitationally lensed type Ia supernova

Goobar, A.; Amanullah, R.; Kulkarni, S. R.; Nugent, P. E.; Johansson, J.; Steidel, C.; Law, D.; Mörtsell, E.; Quimby, R.; Blagorodnova, N.; Brandeker, A.; Cao, Y.; Cooray, A.; Ferretti, R.; Fremling, C.; Hangard, L.; Kasliwal, M.; Kupfer, T.; Lunnan, R.; Masci, F.; Miller, A. A.; Nayyeri, H.; Neill, J. D.; Ofek, E. O.; Papadogiannakis, S.; Petrushevska, T.; Ravi, V.; Sollerman, J.; Sullivan, M.; Taddia, F.; Walters, R.; Wilson, D.; Yan, L.; Yaron, O.

doi:10.1126/science.aal2729

Title: iPTF16geu: A multiply imaged, gravitationally lensed type Ia supernova

Journal Article · Fri Apr 21 00:00:00 EDT 2017 · Science

DOI:https://doi.org/10.1126/science.aal2729· OSTI ID:1379815

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Stockholm Univ. (Sweden). Oskar Klein Centre, Dept. of Physics
California Inst. of Technology (CalTech), Pasadena, CA (United States). Cahill Center for Astrophysics
Univ. of California, Berkeley, CA (United States). Dept. of Astronomy; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Weizmann Inst. of Science, Rehovot (Israel). Dept. of Particle Physics and Astrophysics
Space Telescope Science Inst., Baltimore, MD (United States)
San Diego State Univ., San Diego, CA (United States). Dept. of Astronomy; Univ. of Tokyo, Kashiwa (Japan). Kavli IPMU (WPI), UTIAS
Stockholm Univ. (Sweden). Dept. of Astronomy
eScience Inst. and Dept. of Astronomy, Seattle, WA (United States)
Univ. of California, Irvine, CA (United States). Dept. of Physics and Astronomy
Stockholm Univ. (Sweden). Oskar Klein Centre, Astronomy Dept.
California Inst. of Technology (CalTech), Pasadena, CA (United States). Cahill Center for Astrophysics; Stockholm Univ. (Sweden). Dept. of Astronomy
California Inst. of Technology (CalTech), Pasadena, CA (United States). Infrared Processing and Analysis Center
Northwestern Univ., Evanston, IL (United States). Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Dept. of Physics and Astronomy; Adler Planetarium, Chicago, IL (United States)
Univ. of Southampton (United Kingdom). Dept. of Physics and Astronomy

We report the discovery of a multiply imaged, gravitationally lensed type Ia supernova, iPTF16geu (SN 2016geu), at redshift z = 0.409. This phenomenon was identified because the light from the stellar explosion was magnified more than 50 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 0.3 arc seconds from the center of the foreground galaxy. The observations probe a physical scale of ~1 kiloparsec, smaller than is typical in other studies of extragalactic gravitational lensing. The large magnification and symmetric image configuration imply close alignment between the lines of sight to the supernova and to the lens. In conclusion, the relative magnifications of the four images provide evidence for substructures in the lensing galaxy.

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Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)

Grant/Contract Number:: AC02-05CH11231; 615929; 1545949; HST-GO-14862.002

OSTI ID:: 1379815

Journal Information:: Science, Vol. 356, Issue 6335; ISSN 0036-8075

Publisher:: AAASCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 124 works

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