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

Abstract

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.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3];  [4]; ORCiD logo [2]; ORCiD logo [5]; ORCiD logo [1];  [6]; ORCiD logo [2]; ORCiD logo [7];  [8]; ORCiD logo [9]; ORCiD logo [1];  [10]; ORCiD logo [1];  [2];  [2]; ORCiD logo [11];  [12] more »; ORCiD logo [13];  [9]; ORCiD logo [2];  [4]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [10]; ORCiD logo [14];  [10]; ORCiD logo [2]; ORCiD logo [9];  [2]; ORCiD logo [4] « less
  1. Stockholm Univ. (Sweden). Oskar Klein Centre, Dept. of Physics
  2. California Inst. of Technology (CalTech), Pasadena, CA (United States). Cahill Center for Astrophysics
  3. Univ. of California, Berkeley, CA (United States). Dept. of Astronomy; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  4. Weizmann Inst. of Science, Rehovot (Israel). Dept. of Particle Physics and Astrophysics
  5. Space Telescope Science Inst., Baltimore, MD (United States)
  6. San Diego State Univ., San Diego, CA (United States). Dept. of Astronomy; Univ. of Tokyo, Kashiwa (Japan). Kavli IPMU (WPI), UTIAS
  7. Stockholm Univ. (Sweden). Dept. of Astronomy
  8. eScience Inst. and Dept. of Astronomy, Seattle, WA (United States)
  9. Univ. of California, Irvine, CA (United States). Dept. of Physics and Astronomy
  10. Stockholm Univ. (Sweden). Oskar Klein Centre, Astronomy Dept.
  11. California Inst. of Technology (CalTech), Pasadena, CA (United States). Cahill Center for Astrophysics; Stockholm Univ. (Sweden). Dept. of Astronomy
  12. California Inst. of Technology (CalTech), Pasadena, CA (United States). Infrared Processing and Analysis Center
  13. 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)
  14. Univ. of Southampton (United Kingdom). Dept. of Physics and Astronomy
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR) (SC-21)
OSTI Identifier:
1379815
Grant/Contract Number:  
AC02-05CH11231; 615929; 1545949; HST-GO-14862.002
Resource Type:
Accepted Manuscript
Journal Name:
Science
Additional Journal Information:
Journal Volume: 356; Journal Issue: 6335; Journal ID: ISSN 0036-8075
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

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., and Yaron, O. iPTF16geu: A multiply imaged, gravitationally lensed type Ia supernova. United States: N. p., 2017. Web. doi:10.1126/science.aal2729.
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. iPTF16geu: A multiply imaged, gravitationally lensed type Ia supernova. United States. doi:10.1126/science.aal2729.
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., and Yaron, O. Fri . "iPTF16geu: A multiply imaged, gravitationally lensed type Ia supernova". United States. doi:10.1126/science.aal2729. https://www.osti.gov/servlets/purl/1379815.
@article{osti_1379815,
title = {iPTF16geu: A multiply imaged, gravitationally lensed type Ia supernova},
author = {Goobar, A. and Amanullah, R. and Kulkarni, S. R. and Nugent, P. E. and Johansson, J. and Steidel, C. and Law, D. and Mörtsell, E. and Quimby, R. and Blagorodnova, N. and Brandeker, A. and Cao, Y. and Cooray, A. and Ferretti, R. and Fremling, C. and Hangard, L. and Kasliwal, M. and Kupfer, T. and Lunnan, R. and Masci, F. and Miller, A. A. and Nayyeri, H. and Neill, J. D. and Ofek, E. O. and Papadogiannakis, S. and Petrushevska, T. and Ravi, V. and Sollerman, J. and Sullivan, M. and Taddia, F. and Walters, R. and Wilson, D. and Yan, L. and Yaron, O.},
abstractNote = {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.},
doi = {10.1126/science.aal2729},
journal = {Science},
number = 6335,
volume = 356,
place = {United States},
year = {2017},
month = {4}
}

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