Wu and I discussed her GALEX-SDSS-Spitzer multi-wavelength study of very low-luminosity galaxies. They have a huge range in properties, from objects with specific star-formation rates that are among the highest I have ever seen, to post-starburst objects, and they have anomalous 8-micron properties. They are very low redshift, so they are generally resolved in GALEX and have non-trivial morphologies.
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