Image Details
Caption: Figure 13.
A correction for IR cirrus and stellar contamination in M31. The left panel shows the W4 map corrected by scaling and subtracting the W1 map. The right panel shows the uncorrected W4 map. The correction removes a large amount of emission not associated with recent star formation from the central region of M31 but does not significantly affect the disk (see Figure 14). We apply an analogous procedure to the FUV emission.
© 2026. The Author(s). Published by the American Astronomical Society.