Abstract
Abstract unWISE is a wide-ranging data analysis effort aimed at repurposing the combined Wide-field Infrared Survey Explorer (WISE) plus NEOWISE imaging archive for Galactic and extragalactic astrophysics. We present updated static sky maps incorporating seven years of W1 (3.4 μm) and W2 (4.6 μm) single-exposure images, uniformly coadding nearly a quarter petabyte of input pixel data. These new unWISE atlases now constitute the deepest ever full-sky maps at wavelengths of 3–5 μm, and will be used to select millions of Dark Energy Spectroscopic Instrument quasar and luminous red galaxy targets.
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