Does dark matter act gravitationaly to itself. If Yes, why does not form more compact objects?

Question

Does dark matter act gravitationaly to itself.If Yes, why does not form more compact objects? Can this be explained as its components have enough kinetic energy to overcome the collapse?

score 1 · Answer 1 · answered Sep 15 '21 at 18:37

Yes, dark matter acts on itself via gravity, why wouldn't it. It can't form compact objects because it can't shed angular momentum, as explained here: If dark matter only interacts with gravity, why doesn't it all clump together in a single point?

Does dark matter act gravitationaly to itself. If Yes, why does not form more compact objects?

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