Metadata
Author: WikiMatrix
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English[en]
To remain gravitationally bound to such a group, each member galaxy must have a sufficiently low velocity to prevent it from escaping (see Virial theorem).
Norwegian[nb]
For å forbli gravitasjonelt bundet til en gruppe, må hvert galaksemedlem ha tilstrekkelig lav hastighet for å forhindre at den flykter (se Viralteoremet).