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Arxiv: The JWST UNCOVER Treasury survey: Ultradeep NIRSpec and NIRCam ObserVations before the Epoch of Reionization Published: 12/8/2022 3:47:01 AM Updated: 9/6/2024 7:29:13 PM

Paper abstract: In this paper we describe the survey design for the Ultradeep NIRSpec andNIRCam ObserVations before the Epoch of Reionization (UNCOVER) Cycle 1 \JWSTTreasury program, which executed its early imaging component in November 2022.The UNCOVER survey includes ultradeep (~29-30\mathrm{AB}) imaging of~45 arcmin^2 on and around the well-studied Abell 2744 galaxy cluster atz=0.308 and will follow-up {~}500 galaxies with extremely deeplow-resolution spectroscopy with the NIRSpec/PRISM during the summer of 2023,with repeat visits in summer 2024. We describe the science goals, surveydesign, target selection, and planned data releases. We also present andcharacterize the depths of the first NIRCam imaging mosaic, highlightingpreviously unparalleled resolved and ultradeep 2-4 micron imaging of knownobjects in the field. The UNCOVER primary NIRCam mosaic spans 28.8 arcmin^2in seven filters (F115W, F150W, F200W, F277W, F356W, F410M, F444W) and 16.8arcmin^2 in our NIRISS parallel (F115W, F150W, F200W, F356W, and F444W). Tomaximize early community use of the Treasury data set, we publicly release fullreduced mosaics of public JWST imaging including 45 arcmin^2 NIRCam and 17arcmin^2 NIRISS mosaics on and around the Abell 2744 cluster, including theHubble Frontier Field primary and parallel footprints.