SDWFS Light Curve Catalog Definitions

SDWFS Overview

The Spitzer Deep, Wide-Field Survey (SDWFS) is a four-epoch infrared survey of 10 square degrees in the Boötes field of the NOAO Deep Wide-Field Survey using the IRAC instrument on the Spitzer Space Telescope. SDWFS, a Spitzer Cycle 4 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 data sets will thus be especially useful for characterizing galaxy evolution beyond z ~ 1.5.

The SDWFS Light Curve Catalog presents the 3.6 and 4.5 micron magnitudes for each SDWFS source in each of the four epochs. For more details see Kozlowski et al. (2010).

SDWFS Catalog Column Descriptions

Gator serves the SDWFS Light Curve Catalogs (10 columns, 515055 data rows).

Name Intype Units Description
ra real deg Right Ascension (J2000)
dec real deg Declination (J2000)
ch1e1 real mag 4 arcsec diameter aperture corrected mag in ch1, epoch1
ch1e2 real mag 4 arcsec diameter aperture corrected mag in ch1, epoch2
ch1e3 real mag 4 arcsec diameter aperture corrected mag in ch1, epoch3
ch1e4 real mag 4 arcsec diameter aperture corrected mag in ch1, epoch4
ch2e1 real mag 4 arcsec diameter aperture corrected mag in ch2, epoch1
ch2e2 real mag 4 arcsec diameter aperture corrected mag in ch2, epoch2
ch2e3 real mag 4 arcsec diameter aperture corrected mag in ch2, epoch3
ch2e4 real mag 4 arcsec diameter aperture corrected mag in ch2, epoch4