merger? Old collision?
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by SHLOMI54
What do you think about this one?
Is it the result of a previous merger???Posted
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by JeanTate in response to SHLOMI54's comment.
Yes, I'd say that's more likely than any alternative that I can think of right now.
If it were a bit more regular, it might look like the outer Lindblad resonance which is expected in quiet, slowly evolving disks; like this (source):
Posted
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by JeanTate in response to JeanTate's comment.
Actually a better reference would be the same Buta 2011 that I posted in other thread you started (which ended up having a discussion on lenses) ...
Posted
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by SHLOMI54
very interesting, thank you Jean
Posted