COOL-LAMPS I. An Extraordinarily Bright Lensed Galaxy at Redshift 5.04

Gourav Khullar, Katya Gozman, Jason J. Lin +19

We report the discovery of COOL J1241+2219, a strongly-lensed galaxy at redshift $z$=5.043$\pm$0.002 with observed magnitude $z_{AB}=20.47$, lensed by a moderate-mass galaxy cluste…