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Published February 11, 2016 | Submitted + Published
Journal Article Open

A free-form prediction for the reappearance of supernova Refsdal in the Hubble Frontier Fields cluster MACSJ1149.5+2223

Abstract

The massive cluster MACSJ1149.5+2223(z = 0.544) displays five very large lensed images of a well-resolved spiral galaxy at z_(spect) = 1.491. It is within one of these images that the first example of a multiply lensed supernova (SN) has been detected recently as part of the Grism Lens-Amplified Survey from Space. The depth of this data also reveals many H ii regions within the lensed spiral galaxy which we identify between the five counter-images. Here, we expand the capability of our free-form method to incorporate these H ii regions locally, with other reliable lensed galaxies added for a global solution. This improved accuracy allows us to estimate when the Refsdal SN will appear within the other lensed images of the spiral galaxy to an accuracy of ∼7 per cent. We predict this SN will reappear in one of the counter-images (RA = 11:49:36.025, Dec. = +22:23:48.11, J2000) and on 2015 November 1 (with an estimated error of ±25 d) it will be at the same phase as it was when it was originally discovered, offering a unique opportunity to study the early phases of this SN and to examine the consistency of the mass model and the cosmological model that have an impact on the time delay prediction.

Additional Information

© 2015 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. Accepted 2015 November 9. Received 2015 October 18. In original form 2015 May 11. First published online December 14, 2015. This work is based on observations made with the NASA/ESA Hubble Space Telescope and operated by the Association of Universities for Research in Astronomy, Inc. under NASA contract NAS 5-2655. Part of the data for this study is retrieved from the Mikulski Archive for Space Telescope. The authors would like to thank the HFF team for making this spectacular data set promptly available to the community. The scientific results reported in this article are based in part on data obtained from the Chandra Data Archive.3,4,5,6,7,8,9,10 We would like to thank Harald Ebeling for making the code ASMOOTH (Ebeling et al. 2006) available. TJB thanks the University of Hong Kong for generous hospitality. JMD acknowledges support of the consolider project CSD2010-00064 and AYA2012-39475-C02-01 funded by the Ministerio de Economia y Competitividad. AZ was provided by NASA through Hubble Fellowship grant #HST-HF2-51334.001-A awarded by STScI. We are grateful the anonymous referee for his/her valuable suggestions and comments that have helped us improve the contents of this paper. The authors would like also to thank Elizabeth E. Brait for assistance with some of the graphical work of this paper.

Attached Files

Published - MNRAS-2016-Diego-356-65.pdf

Submitted - 1504.05953v2.pdf

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Additional details

Created:
August 20, 2023
Modified:
October 17, 2023