HST-Based Lens Model of SDSS J1226+2152, in Preparation for JWST-ERS TEMPLATES

Authors :: Sharon, Keren
Cerny, Catherine
Rigby, Jane R.
Florian, Michael K.
Bayliss, Matthew B.
Dahle, Hakon
Gladders, Michael D.
Mahler, Guillaume
Publication Year :: 2022
Publisher :: arXiv, 2022.
Abstract: The strongly lensed z=2.9233 Lyman break galaxy, SGAS J122651.3+215220, lensed by a cluster at z=0.4358, was first targeted by JWST as part of the JWST-ERS program TEMPLATES: Targeting Extremely Magnified Panchromatic Lensed Arcs and their Extended Star formation. Aiming to combine the exquisite capabilities of JWST with the extreme magnification provided by strong gravitational lensing, these observations will peer into galaxies at cosmic noon and probe the building blocks of star formation. Here, we present an Hubble Space Telescope strong lensing analysis, lens model, source-plane interpretation, and the lensing outputs needed to analyze the JWST observations in the context of the source's intrinsic properties. The lens model outputs are made publicly available to the community through the Mikulski Archive for Space Telescopes (MAST) Portal.<br />Comment: 15 pages, 7 figures. HLSPs are available on MAST at http://dx.doi.org/10.17909/zqax-2y86