Figure 17 - available via license: Creative Commons Attribution 4.0 International
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The observed HST F814W-band data compared to the reconstructed model. Upper panel from left to right: the observed image, the reconstructed light intensity, and the normalized residuals. The circular mask illustrates the image region used in computing the likelihood. Lower panel from left to right: the reconstructed source, convergence (projected surface mass density), and magnification model with the four supernova images. In the reconstructed source panel, the blue star marks the unlensed position of the supernova, and no light from the host galaxy is detected above the noise level.
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Supernovae (SNe) that have been multiply-imaged by gravitational lensing are rare and powerful probes for cosmology. Each detection is an opportunity to develop the critical tools and methodologies needed as the sample of lensed SNe increases by orders of magnitude with the upcoming Vera C. Rubin Observatory and Nancy Grace Roman Space Telescope. T...
Context in source publication
Context 1
... flux ratios of the supernova images were not included in our lens model, because they failed to provide a good fit to the data and increased the reduced χ 2 from 1.17 to 5.59 (for the F814W filter). The reconstructed image model, source, convergence, and magnification model using the best-fit parameters from the converged MCMC chain are shown in Figure 17. ...
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