Search for the Gravitational Absorption Effect Using Superconducting Gravimeters During the Eclipse of August 11, 1999.

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The path of the Solar eclipse on August 11, 1999 passed over four superconducting gravimeter stations in Uccles and Membach (Belgium), Strasbourg (France), and Vienna (Austria), providing an unique opportunity for an experiment to detect the gravitational shielding (absorption) effect . The residual gravity time series from the four gravimeters, after removal of the theoretical tide and correction for barometric effects, show no identifiable eclipse related change above the ambient noise during the eclipse. The noise level provides an upper bound for the shielding constant γ . Results from this experiment givesγ<10-16 m2 kg-1, which is consistent with the majority of recent estimates of γ from eclipse observations with spring gravimeters, but is substantially higher than the γ<10-22 m2 kg-12 obtained from an analysis of lunar laser ranging data.
日本測地学会の論文