Eight-year Full-depth unWISE Coadds
Aaron M. Meisner, Dustin Lang, Edward F. Schlafly, David J. Schlegel
TL;DR
This paper introduces deep, full-sky infrared maps created from 8 years of WISE and NEOWISE data, providing the deepest 3-5 micron maps to date for astronomical surveys.
Contribution
It presents the construction of full-sky coadds from 8 years of infrared data, enhancing the depth and quality of infrared sky maps for scientific use.
Findings
Deepest full-sky 3-5 micron maps to date
Enhanced photometry for astronomical surveys
Supports DESI Legacy Imaging Surveys DR10
Abstract
We present deep, full-sky maps built from Wide-field Infrared Survey Explorer (WISE) and NEOWISE exposures spanning the 2010 January - 2020 December time period. These coadds, which incorporate roughly 8 years of W1 (3.4 microns) and W2 (4.6 microns) imaging, are the deepest ever full-sky maps at wavelengths of 3-5 microns. Photometry based on these coadds will be a component of DESI Legacy Imaging Surveys DR10.
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Taxonomy
TopicsCCD and CMOS Imaging Sensors · Calibration and Measurement Techniques · Infrared Target Detection Methodologies