The Spitzer Deep, Wide-Field Survey
M. L. N. Ashby, D. Stern, M. Brodwin, R. Griffith, P. Eisenhardt, S., Kozlowski, C. S. Kochanek, J. J. Bock, C. Borys, K. Brand, M. J. I. Brown, R., Cool, A. Cooray, S. Croft, A. Dey, D. Eisenstein, A. H. Gonzalez, V. Gorjian,, N. A. Grogin, R. J. Ivison, J. Jacob, B. T. Jannuzi

TL;DR
The SDWFS is a comprehensive four-epoch infrared survey covering ten square degrees, enabling the study of galaxy evolution, variable objects, and high proper motion sources with detailed source catalogs and early scientific insights.
Contribution
This paper introduces the SDWFS survey's observing strategy, data processing, source catalogs, and initial scientific findings, highlighting its unique wide-field, multi-epoch infrared capabilities.
Findings
Source catalogs contain nearly 680,000 sources at 3.6 microns.
Over 50% of radio sources are detected at 8.0 microns.
Identified high proper motion objects likely to be field brown dwarfs.
Abstract
The Spitzer Deep, Wide-Field Survey (SDWFS) is a four-epoch infrared survey of ten square degrees in the Bootes field of the NOAO Deep Wide-Field Survey using the IRAC instrument on the Spitzer Space Telescope. SDWFS, a Cycle four Spitzer Legacy project, occupies a unique position in the area-depth survey space defined by other Spitzer surveys. The four epochs that make up SDWFS permit -- for the first time -- the selection of infrared-variable and high proper motion objects over a wide field on timescales of years. Because of its large survey volume, SDWFS is sensitive to galaxies out to z~3 with relatively little impact from cosmic variance for all but the richest systems. The SDWFS datasets will thus be especially useful for characterizing galaxy evolution beyond z~1.5. This paper explains the SDWFS observing strategy and data processing, presents the SDWFS mosaics and source…
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