Extended Data Fig. 6: Light-curve-based age constraints for AT 2016jka.
From: A gravitationally lensed supernova with an observable two-decade time delay
Constraints are shown separately for Image SN1 (panels a and b), image 2 (c and d), and image 3 (e and f), using the methodology described in Methods: Light Curve Age Constraints. Large lower panels (b, d and f) show the observations and model fits. Each orange shaded region shows the 1σ range of the measured F160W magnitude after lens model correction (see Table 1), which corresponds to roughly V band in the rest-frame. The model fits are shown as grey shaded regions, indicating the 68% confidence interval of the best-fit SALT2 light curve, with the median model shown as a solid line. Small upper panels (a, c and e) show the posterior distributions from SNTD for the age of each image that is independent of the lens model (magenta, same as Extended Data Figure 7), using the preferred lens model E (light blue), and the combination of both methods (orange).
