Quote:
Originally Posted by renormalised
Even given the likelihood that BD's are more numerous than all the normal stars, their numbers wouldn't add any more than a few percent more mass to what's missing, so you'd still have the majority of the mass to account for.
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That's what I was thinking. I guess my crackport theory is that DM is a few % BD, a few % black holes, a few % other normal things yet to be itemised and a significant chunk of new fangled stuff that we don't understand yet.
Quote:
Originally Posted by renormalised
The only real way to tell them apart would be to actually go to them and probe their internal structure by mapping their gravitational fields.
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If giant planets have a rocky core. Stars don't. Why not? BD have a core of what?