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As I understand it, those simulations did not include three-body interactions that could leave particle pairs bound. If this happens, those binaries can now in
by pfdietz 2y ago
As I understand it, those simulations did not include three-body interactions that could leave particle pairs bound. If this happens, those binaries can now inject energy into the cluster as a whole, keeping it inflated and preventing collapse. Of course, the binaries' orbits shrink over time, so this doesn't go on forever.
- leephillips 2y agoWhat is a three-body interaction in classical gravity? If you calculate the force on each particle from every other particle, what’s left out?
- pfdietz 2y agoI mean, they did not calculate interactions on a sufficiently short time scale that cases where three bodies come together and two come out bound would occur.