The JWST Resolved Stellar Populations Early Release Science Program II. Survey Overview

We present the JWST Resolved Stellar Populations Early Release Science (ERS) science program. We obtained 27.5 hours of NIRCam and NIRISS imaging of three targets in the Local Group (Milky Way globular cluster M92, ultra-faint dwarf galaxy Draco II, star-forming dwarf galaxy WLM), which span factors...

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Published in:arXiv.org 2023-01
Main Authors: Weisz, Daniel R, McQuinn, Kristen B W, Savino, Alessandro, Kallivayalil, Nitya, Anderson, Jay, Boyer, Martha L, Correnti, Matteo, Geha, Marla C, Dolphin, Andrew E, Sandstrom, Karin M, Cole, Andrew A, Williams, Benjamin F, Skillman, Evan D, Cohen, Roger E, Newman, Max J B, Beaton, Rachael, Bressan, Alessandro, Bolatto, Alberto, Boylan-Kolchin, Michael, Brooks, Alyson M, Bullock, James S, Conroy, Charlie, Cooper, M C, Dalcanton, Julianne J, Dotter, Aaron L, Fritz, Tobias K, Garling, Chris, Gennaro, Mario, Gilbert, Karoline M, Girardi, Leo, Johnson, Benjamin D, L Clifton Johnson, Kalirai, Jason, Kirby, Evan N, Lang, Dustin, Marigo, Paola, Richstein, Hannah, Schlafly, Edward F, Schmidt, Judy, Tollerud, Erik J, Warfield, Jack T, Wetzel, Andrew
Format: Article
Language:English
Subjects:
Astronomical models
Color-magnitude diagram
Dwarf galaxies
Globular clusters
Local group (astronomy)
Luminosity
Milky Way
Science programs
Star formation
Stellar models
Stellar populations
Surface brightness
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Summary:We present the JWST Resolved Stellar Populations Early Release Science (ERS) science program. We obtained 27.5 hours of NIRCam and NIRISS imaging of three targets in the Local Group (Milky Way globular cluster M92, ultra-faint dwarf galaxy Draco II, star-forming dwarf galaxy WLM), which span factors of \(\sim10^5\) in luminosity, \(\sim10^4\) in distance, and \(\sim10^5\) in surface brightness. We describe the survey strategy, scientific and technical goals, implementation details, present select NIRCam color-magnitude diagrams (CMDs), and validate the NIRCam exposure time calculator (ETC). Our CMDs are among the deepest in existence for each class of target. They touch the theoretical hydrogen burning limit in M92 (\(
ISSN:2331-8422