Revised Lens Model for the Multiply-Imaged Lensed Supernova, "SN Refsdal", in MACS J1149+2223

Understand

We present a revised lens model of MACS J1149+2223, in which the first resolved multiply-imaged lensed supernova was discovered.

• The lens model is based on the model of Johnson et al.
• (2014) with some modifications.
• We include more lensing constraints from the host galaxy of the newly discovered supernova, and increase the flexibility of the model in order to better reproduce the lensing signal in the vicinity of this galaxy.