Data from CANDELS NIRWL F160W Mosaics (CANDELSNIRWL)

The NIRWL team has prepared new mosaics covering the CANDELS fields: The UltraDeep Survey (UDS), GOODS South (GS), GOODS North (GN), The Extended Groth Strip (EGS), and the Cosmological Evolution Survey (COSMOS) in the HST F160W filter. The mosaics are drizzled to a pixel scale of 0.05’’ using the Gaussian kernel. The mosaics are aligned to the Gaia DR3 catalog to ±0.02 arcsec. Proper motions were included when aligning the frames to Gaia DR3. These mosaics have been corrected for systematic astrometric misalignments found in previous versions of the CANDELS F160W mosaics.
These carefully aligned mosaics have been created to perform a weak lensing analysis and search for large-scale overdensities. The spatially and temporally varying PSF of each mosaic has been constructed from the individual frames and characterized in the team's primary paper, Finner et al. (2023). Systematic effects that can affect galaxy shape measurements on the NIRWL mosaics are investigated.