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Comment Re:Why a new class? (Score 2, Informative) 104 104

HST images were needed to investigate the morphology - the shapes just couldn't be picked out in the original images as the galaxies are so compact. However, it looks like a number of them have complex shapes hinting that they are or have recently been involved in mergers with other galaxies. We don't have much to go on at the moment though.

It is much easier to suggest solutions when you know nothing about the problem.

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