Galaxy Zoo Talk
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The GAMA data set seems to have many such galaxies : bright, thick disk or bar, with diffuse arms.
Posted March 3, 2017 2:46 AM
GAMA goes deeper than SDSS, so we expect to see more around each galaxy. Such diffuse arms may exist in SDSS but they're too faint to see!
Posted March 3, 2017 7:22 PM