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Originally Posted by dgruss23
Just to be clear - you intend to show how these provide evidence that the DM must be collisionless CDM specifically? As opposed to Warm DM, Self interacting DM, baryonic DM ... ?
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Yes.
Though, since we're doing science here, "must be" is a little too strong, and 'collisionless', 'cold', and 'non-baryonic' will, of course, be appropriately defined (and constrained).
And the primary thrust is 'dark matter' - i.e. mass which neither emits nor absorbs electromagnetic radiation, in the relevant wavebands, to the established observational limits.