COSMOS2025: The COSMOS-Web galaxy catalog of photometry, morphology, redshifts, and physical parameters from JWST, HST, and ground-based imaging

Open Access

Fig. 4

Cutout of the NIRCam $χ_{+}^{2}$ $\[\chi_{+}^{2}\]$ detection image in tile B10, with the custom star mask overlaid. The mask covers bright stars and their large diffraction spikes. At the top right is a large “Dragon’s Breath” artifact (type II), which arises from the bright (K ~ 6.5 Vega mag) star to the north. This feature, and other artifacts, are manually masked.

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