Astrophysics

   

A Mystery is Solved: Gravitational Waves Generate the Constant Hum of the Earth

Authors: Herbert Weidner

25 years ago, weak permanent oscillations were discovered in the records of gravimeters, which are not excited by earthquakes and are also not natural resonances of the earth. Proposed causes like wind and ocean waves are ruled out because of their unreliability. The oscillation at 836.69~$mu$Hz exhibits most typical modulations expected for gravitational waves. Their frequency stability can also explain the surprising, previously unknown phase coherence discovered in the records of eight gravimeters. The gravitational waves emitted by the countless binary star systems in our galaxy are probably the cause of the strikingly strong background noise of gravimeters.

Comments: 13 Pages.

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[v1] 2022-08-03 09:59:17

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