Image Details

Choose export citation format:

The Magnificent Five Images of Supernova Refsdal: Time Delay and Magnification Measurements

  • Authors: Patrick L. Kelly, Steven Rodney, Tommaso Treu, Simon Birrer, Vivien Bonvin, Luc Dessart, Ryan J. Foley, Alexei V. Filippenko, Daniel Gilman, Saurabh Jha, Jens Hjorth, Kaisey Mandel, Martin Millon, Justin Pierel, Stephen Thorp, Adi Zitrin, Tom Broadhurst, Wenlei Chen, Jose M. Diego, Alan Dressler, Or Graur, Mathilde Jauzac, Matthew A. Malkan, Curtis McCully, Masamune Oguri, Marc Postman, Kasper Borello Schmidt, Keren Sharon, Brad E. Tucker, Anja von der Linden, Joachim Wambsganss

Patrick L. Kelly et al 2023 The Astrophysical Journal 948 .

  • Provider: AAS Journals

Caption: Figure 3.

The observer-frame (z = 1.49) broadband light curves at 5000–7000 Å of SN Refsdal and those of low-redshift SN 1987A–like SNe with a similar shape stretched in time by a factor of 2.49. All light curves are well fit by a piecewise polynomial function. In the fits shown above, the photospheric phase light curve is modeled using a third-order polynomial and the nebular-phase light curve with a second-order polynomial. The uppermost points and best-fitting model are of SN Refsdal’s F125W and F160W combined light curves constructed by shifting and rescaling the measured photometry of its five appearances according to the best-fitting time delays and magnifications relative to that of S1. The F125W and F160W bandpasses correspond approximately to rest-frame V and R bandpasses at z = 1.49, and we plot in respective panels above the measured V and R for the low-redshift examples of SN 1987A–like SNe. For visual clarity we rescale and then subtract constant flux values from the light curves of the nearby SNe.

Other Images in This Article

Show More

Copyright and Terms & Conditions

Additional terms of reuse