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Astronomy

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    $\begingroup$ There were only 7 detections until now. Maybe we had only bad luck? I think the answer lies in the numbers (probability of such events in complex galaxis models). Hopefully somebody will it explain. $\endgroup$
    – peterh
    Commented May 23, 2018 at 22:25
  • $\begingroup$ Good question! Presumably the answer will be based on probabilities of the binary combinations: that will definitely be interesting to learn about! $\endgroup$
    – Chappo Hasn't Forgotten
    Commented May 24, 2018 at 6:51
  • $\begingroup$ I suspect that is simply a good research question at the moment. $\endgroup$
    – ProfRob
    Commented May 25, 2018 at 5:49