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Photometry and astrometry with JWST - I. NIRCam point spread functions and the first JWST colour-magnitude diagrams of a globular cluster
Salaris, M.; Bedin, L. R.; Nardiello, D. +4 more
As the James Webb Space Telescope (JWST) has become fully operational, early release data are now available to begin building the tools and calibrations for precision point-source photometry and astrometry in crowded cluster environments. Here, we present our independent reduction of NIRCam imaging of the metal-poor globular cluster M 92, which we…
Deep diving off the 'Cosmic Cliffs': previously hidden outflows in NGC 3324 revealed by JWST
Smith, Nathan; Reiter, Megan; Morse, Jon A. +3 more
We present a detailed analysis of the protostellar outflow activity in the massive star-forming region NGC 3324, as revealed by new Early Release Observations (EROs) from the James Webb Space Telescope (JWST). Emission from numerous outflows is revealed in narrow-band images of hydrogen Paschen α (Paα) and molecular hydrogen. In particular, we rep…
Galaxy source counts at 7.7, 10, and 15 µm with the James Webb Space Telescope
Kilerci, Ece; Hashimoto, Tetsuya; Goto, Tomotsugu +7 more
We present mid-infrared (IR) galaxy number counts based on the Early Release Observations obtained by the James Webb Space Telescope (JWST) at 7.7-, 10-, and 15-µm (F770W, F1000W, and F1500W, respectively) bands of the Mid-Infrared Instrument (MIRI). Due to the superior sensitivity of JWST, the 80-per cent completeness limits reach 0.32, 0.7…