Spitzer Observations of the North Ecliptic Pole

Abstract

We present a photometric catalog for Spitzer Space Telescope warm mission observations of the North Ecliptic Pole (NEP; centered at $R.A.=18^{\mathrm{h}}00^{\mathrm{m}}00^{\mathrm{s}}$, $Decl.=66^{\mathrm{d}}33^{\mathrm{m}}38^{\mathrm{s}}.552$). The observations are conducted with IRAC in 3.6 $\hat{I}¼$m and 4.5 $\hat{I}¼$m bands over an area of 7.04 deg${}^2$ reaching 1$\ddot{I}ƒ$ depths of 1.29 $\hat{I}¼$Jy and 0.79 $\hat{I}¼$Jy in the 3.6 $\hat{I}¼$m and 4.5 $\hat{I}¼$m bands respectively. The photometric catalog contains 380,858 sources with 3.6 $\hat{I}¼$m and 4.5 $\hat{I}¼$m band photometry over the full-depth NEP mosaic. Point source completeness simulations show that the catalog is 80% complete down to 19.7 AB. The accompanying catalog can be utilized in constraining the physical properties of extra-galactic objects, studying the AGN population, measuring the infrared colors of stellar objects, and studying the extra-galactic infrared background light.

10 pages, 11 figures and 3 tables. Accepted to the ApJS