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

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

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...

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Veröffentlicht in:The Astrophysical journal. Supplement series 2023-09, Vol.268 (1), p.15
Hauptverfasser: 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, Christopher T., Gennaro, Mario, Gilbert, Karoline M., Girardi, Léo, Johnson, Benjamin D., Johnson, L. Clifton, Kalirai, Jason S., Kirby, Evan N., Lang, Dustin, Marigo, Paola, Richstein, Hannah, Schlafly, Edward F., Schmidt, Judy, Tollerud, Erik J., Warfield, Jack T., Wetzel, Andrew
Format: Artikel
Sprache:eng
Schlagworte:
Color
Dwarf galaxies
Globular clusters
Hertzsprung Russell diagram
Hubble Space Telescope
James Webb Space Telescope
Local Group
Local group (astronomy)
Luminosity
Milky Way
Point sources
Space telescopes
Star formation
Stellar models
Stellar photometry
Stellar populations
Surface brightness
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Zusammenfassung: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 (
ISSN:0067-0049
1538-4365
DOI:10.3847/1538-4365/acdcfd