Spitzer/Infrared Array Camera near-infrared features in the outer parts of S4G galaxies
We present a catalogue and images of visually detected features, such as asymmetries, extensions, warps, shells, tidal tails, polar rings, and obvious signs of mergers or interactions, in the faint outer regions (at and outside of R25) of nearby galaxies. This catalogue can be used in future quantitative studies that examine galaxy evolution due to
Laine, S. et al.
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2014