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THESPITZERSURVEY OF STELLAR STRUCTURE IN GALAXIES (S4G): PRECISE STELLAR MASS DISTRIBUTIONS FROM AUTOMATED DUST CORRECTION AT 3.6μm
Astrophysical Journal Supplement Series
The mid-infrared is an optimal window to trace stellar mass in nearby galaxies and the 3.6μ m IRAC band has been exploited to this effect, but such mass estimates can be biased by dust emission. We present our pipeline to reveal the old stellar flux at 3.6μ m and obtain stellar mass maps for more than 1600 galaxies available from the Spitzer Survey of Stellar Structure in Galaxies (S^4G). This survey consists of images in two infrared bands (3.6 and 4.5μ m), and we use the Independent Componentdoi:10.1088/0067-0049/219/1/5 fatcat:eiwzpedadvbondlrwej5yrbv7q