https://www.legacysurvey.org//viewer/?ra=41.5860&dec=-30.2652&layer=ls-dr9&zoom=10
What are those two poles towards the north-west of the galaxy?
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This seems to be plumes leftover from the past interaction with a smaller galaxy. This is virtually the same process that occurs in NGC 4651.
https://www.legacysurvey.org//viewer/?ra=190.9623&dec=16.4002&layer=ls-dr9&zoom=12
They are seen clearly and described better in this image:
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