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NIRCam Performance on JWST In Flight
Marcia J. Rieke, Douglas M. Kelly, Karl Misselt +7
The Near Infrared Camera for the James Webb Space Telescope is delivering the imagery that astronomers have hoped for ever since JWST was proposed back in the 1990s. In the Commiss…
Early Results from GLASS-JWST. XIX: A High Density of Bright Galaxies at in the Abell 2744 Region
Marco Castellano, Adriano Fontana, Tommaso Treu +38
We report the detection of a high density of redshift galaxies behind the foreground cluster Abell 2744, selected from imaging data obtained recently with NIRCam onbo…
JWST NIRCam Defocused Imaging: Photometric Stability Performance and How it Can Sense Mirror Tilts
Everett Schlawin, Thomas Beatty, Brian Brooks +25
We use JWST NIRCam short wavelength photometry to capture a transit lightcurve of the exoplanet HAT-P-14 b to assess performance as part of instrument commissioning. The short wave…
The JWST Resolved Stellar Populations Early Release Science Program I.: NIRCam Flux Calibration
Martha L. Boyer, Jay Anderson, Mario Gennaro +16
We use globular cluster data from the Resolved Stellar Populations Early Release Science (ERS) program to validate the flux calibration for the Near Infrared Camera (NIRCam) on the…
JWST/NIRCam Coronagraphy: Commissioning and First On-Sky Results
Julien H. Girard, Jarron Leisenring, Jens Kammerer +53
In a cold and stable space environment, the James Webb Space Telescope (JWST or "Webb") reaches unprecedented sensitivities at wavelengths beyond 2 microns, serving most fields of…
First Peek with JWST/NIRCam Wide-Field Slitless Spectroscopy: Serendipitous Discovery of a Strong [O III]/H Emitter at
Fengwu Sun, Eiichi Egami, Nor Pirzkal +15
We report the serendipitous discovery of an [O III] 4959/5007 and H line emitter in the Epoch of Reionization (EoR) with the JWST commissioning data taken in the NIRCam wide…