Several black hole collisions have been detected. How do they determine if the gravitational waves have been strengthened or weakened by interaction with other event waves?
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$\begingroup$ Dark Matter, Dark Energy and all of the Galaxies in between means where was the collision? $\endgroup$– James LeismerMar 28, 2018 at 5:43
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$\begingroup$ 2 sets of detectors detected the same event at the same point in time. Coincidence? $\endgroup$– physics2000Mar 28, 2018 at 6:45
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$\begingroup$ The papers are here: ligo.caltech.edu/page/detection-companion-papers. For a specific observation, see for example: journals.aps.org/prl/abstract/10.1103/PhysRevLett.116.241103. If you doubt their methodology, please be more explicit in your question. $\endgroup$– Stéphane RollandinMar 28, 2018 at 8:55
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$\begingroup$ Cloud you clarify your question? Are you asking about the possible complications of overlapping gravitational wave signals? Or out interference on the detectors from other (none GW sources, e.g. seismic activity). $\endgroup$– TimRiasMar 28, 2018 at 9:00
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$\begingroup$ Probably useful related questions: physics.stackexchange.com/q/235574/25301, physics.stackexchange.com/q/255317/25301, physics.stackexchange.com/q/382665/25301 and probably others $\endgroup$– Kyle KanosMar 28, 2018 at 10:15
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