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The author said on /r/space that was the case -- this was a binary system with the stars orbiting very close to eachother.
by raducu 7y ago
The author said on /r/space that was the case -- this was a binary system with the stars orbiting very close to eachother.
- ars 7y agoHe was asking if the velocity was given by the black hole, or if it was already there from the binary star orbit. I can't figure out any way a black hole can give velocity (relative to the black hole) - any increase in velocity would be balanced by a decrease as the object leaves.
- phaedrus 7y agoNot velocity - momentum is what is conserved. So the black hole could have absorbed the equal and opposite momentum, but being more massive, not gained much velocity. Or, a hypothetical scenario in separating the two it could have flung them in opposite directions, in which case it would be net zero momentum. (But I don't know if - and kind of doubt whether - that is a possible outcome of a three-body interaction.)
- glaberficken 7y agorelevant: Factual explanation of the 3 body problem: https://en.wikipedia.org/wiki/Three-body_problem https://en.wikipedia.org/wiki/Three-body_problem And the 1st book of an (excellent) si-fi triology: https://en.wikipedia.org/wiki/The_Three-Body_Problem_(novel) https://en.wikipedia.org/wiki/The_Three-Body_Problem_(novel)