Image Details
Caption: Figure 4.
HST footprints overlaid on 15﹩^{\prime} ﹩× 15﹩^{\prime} ﹩ DSS images on two galaxies, UGC 09240 and NGC 6789, showing there is a range in areal coverage in the HST data. For the first system, the HST imaging provides excellent coverage of the main stellar disk, whereas for the second system, the coverage is incomplete. To ensure our stellar mass calculations uniformly represent a fuller extent of stellar components across the sample, we opted to use IRAC 3.6 μm imaging and adopt a ﹩{{\rm{\Upsilon }}}_{* }^{3.6\mu {\rm{m}}}﹩ approach for estimating the stellar masses. A comprehensive atlas of DSS images of the galaxies with HST footprints overlaid for the rest of the sample is provided in Appendix A.
© 2026. The Author(s). Published by the American Astronomical Society.