COOL-LAMPS VI: Lens model and New Constraints on the Properties of COOL J1241+2219, a Bright z = 5 Lyman Break Galaxy and its z = 1 Cluster Lens

Maxwell Klein, Keren Sharon, Kate Napier +20

We present a strong lensing analysis of COOL J1241+2219, the brightest known gravitationally lensed galaxy at $z\ge 5$, based on new multi-band Hubble Space Telescope (HST) imagi…