*** SERVS DR2 - SERVS IRAC12 "Bandmerge" *** *** Mattia Vaccari (UWC) & Lucia Marchetti (OU) & Eduardo Gonzalez-Solares (IoA) *** http://www.mattiavaccari.net/df/ - Last Updated on 13 Jan 2017 Mauduit et al. 2012, PASP, 124, 917, 714 and Vaccari 2015, PoS, 267, 27 We produced single-band IRAC1 and IRAC2 catalogs, measured aperture and integrated fluxes/magnitudes and corrected aperture fluxes/magnitudes using the correction factors adopted in SWIRE DR2/3 by Surace+ 2005 http://irsa.ipac.caltech.edu/data/SPITZER/SWIRE/docs/delivery_doc_r2_v2.pdf IRAC aperture radii [arcsec] ap1 = 1.4 ap2 = 1.9 ap3 = 2.9 ap4 = 4.1 ap5 = 5.8 We did merge single-band IRAC1 and IRAC2 catalogs into an IRAC12 catalog using a search radius of 1.0 arcsec We did add three columns at the beginning of the catalog - ID_12 index to track sources (single-band indices are NUMBER_1 and NUMBER_2) - ALPHA_J2000_12 and DELTA_J2000_2 which are average values for sources detected in both IRAC1 and IRAC2 This SERVS-IRAC12 "Bandmerge" is then used as input for the SERVS "Data Fusion" (see readme.datafusion)