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26 April 2024 |
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A Free-Form Prediction for the Reappearance of Supernova Refsdal in the Hubble Frontier Fields Cluster MACSJ1149.5+2223 | | Jose M. Diego
; Tom Broadhurst
; Cuncheng Chen
; Jeremy Lim
; Adi Zitrin
; Brian Chan
; Dan Coe
; Holland C. Ford
; Daniel Lam
; Wei Zheng
; | | Date: |
22 Apr 2015 | | 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 has
been detected recently in deep Hubble Frontier Field imaging. The depth of this
data also reveals many HII 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 HII regions locally, with other reliable
lensed galaxies added for a global solution. This improved accuracy allows us
to estimate when the Refsdal supernova will appear within the other lensed
images of the spiral galaxy to an accuracy of about 7%. We predict the
reappearance of this supernova in one of the counter-images (RA=11:49:36.025,
DEC=+22:23:48.11, J2000) on November first 2015 (plus minus 25 days), offering
a unique opportunity to study the early phases of this supernova and to examine
the consistency of the mass model and the cosmological model that have an
impact on the time delay prediction. | | Source: | arXiv, 1504.5953 | | Services: | Forum | Review | PDF | Favorites | |
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