Journal
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
Volume 240, Issue 2, Pages -Publisher
IOP Publishing Ltd
DOI: 10.3847/1538-4365/aafbea
Keywords
catalogs; infrared: general; surveys; techniques: photometric
Categories
Funding
- NASA ADAP grant [NNH17AE75I]
- NASA - Space Telescope Science Institute [HST-HF2-51367.001-A, HST-HF2-51415.001-A]
- NASA [NAS 5-26555]
- Office of Science, Office of High Energy Physics of the U.S. Department of Energy [DE-AC02-05CH11231]
- National Energy Research Scientific Computing Center, a DOE Office of Science User Facility [DE-AC02-05CH11231]
- National Aeronautics and Space Administration
- FAS Division of Science, Research Computing Group at Harvard University
- Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]
- National Science Foundation Major Research Instrumentation program [ACI-1429830]
Ask authors/readers for more resources
We present the unWISE Catalog, containing the positions and fluxes of roughly 2 billion objects observed by the Wide-field Infrared Survey Explorer (WISE) over the full sky. The unWISE Catalog has two advantages over the existing WISE catalog (AllWISE): first, it is based on significantly deeper imaging, and second, it features improved modeling of crowded regions. The deeper imaging used in the unWISE Catalog comes from the coaddition of all publicly available 3-5 mu m WISE imaging, including that from the ongoing NEOWISE-reactivation mission, thereby increasing the total exposure time by a factor of 5 relative to AllWISE. At these depths, even at high Galactic latitudes, many sources are blended with their neighbors; accordingly, the unWISE analysis simultaneously fits thousands of sources to obtain accurate photometry. Our new catalog detects sources roughly 0.7 magnitudes fainter than the AllWISE catalog at 5 sigma, and more accurately models millions of faint sources in the Galactic plane, enabling a wealth of Galactic and extragalactic science. In particular, relative to AllWISE, unWISE doubles the number of galaxies detected between redshifts 0 and 1 and triples the number between redshifts 1 and 2, cataloging more than half a billion galaxies over the whole sky.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available