SPITZER POINT-SOURCE CATALOGS OF ~ 300,000 STARS IN SEVEN NEARBY GALAXIES*

2015 
We present Spitzer IRAC 3.6–8 and Multiband Imaging Photometer point-source catalogs for seven galaxies: NGC 6822, M33, NGC 300, NGC 2403, M81, NGC 0247, and NGC 7793. The catalogs contain a total of ~300,000 sources and were created by dual-band selection of sources with detections at both 3.6 and . The source lists become significantly incomplete near . We complement the 3.6 and fluxes with 5.8, 8.0, and fluxes or upper limits using a combination of PSF and aperture photometry. This catalog is a resource as an archive for studying mid-infrared transients and for planning observations with the James Webb Space Telescope.
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