학술논문
The JWST Resolved Stellar Populations Early Release Science Program. II. Survey Overview
Document Type
article
Author
Daniel R. Weisz; Kristen B. W. McQuinn; Alessandro Savino; Nitya Kallivayalil; Jay Anderson; Martha L. Boyer; Matteo Correnti; Marla C. Geha; Andrew E. Dolphin; Karin M. Sandstrom; Andrew A. Cole; Benjamin F. Williams; Evan D. Skillman; Roger E. Cohen; Max J. B. Newman; Rachael Beaton; Alessandro Bressan; Alberto Bolatto; Michael Boylan-Kolchin; Alyson M. Brooks; James S. Bullock; Charlie Conroy; M. C. Cooper; Julianne J. Dalcanton; Aaron L. Dotter; Tobias K. Fritz; Christopher T. Garling; Mario Gennaro; Karoline M. Gilbert; Léo Girardi; Benjamin D. Johnson; L. Clifton Johnson; Jason S. Kalirai; Evan N. Kirby; Dustin Lang; Paola Marigo; Hannah Richstein; Edward F. Schlafly; Judy Schmidt; Erik J. Tollerud; Jack T. Warfield; Andrew Wetzel
Source
The Astrophysical Journal Supplement Series, Vol 268, Iss 1, p 15 (2023)
Subject
Language
English
ISSN
1538-4365
0067-0049
0067-0049
Abstract
We present the JWST Resolved Stellar Populations Early Release Science (ERS) program. We obtained 27.5 hr of NIRCam and NIRISS imaging of three targets in the Local Group (Milky Way globular cluster M92, ultrafaint dwarf galaxy Draco II , and star-forming dwarf galaxy WLM), which span factors of ∼10 ^5 in luminosity, ∼10 ^4 in distance, and ∼10 ^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 (