RUI: Search for a Stochastic Background of Gravitational Waves Using the Normal Modes of the Earth (Physics)

沐浴在宇宙中的背景辐射 宇宙历史的重要线索，甚至可以 影响其演变。 寻找一个背景， 在兆赫频率范围内的引力辐射， 应采用地球的正常模式。 的 大约200站年的数据收集的 IDA项目将对全球地震仪网络进行分析， 寻找四极模的任何残余激发， 地球 此外，还计算了 已知的地面源的这些模式将有助于 评估地球作为一个 引力波探测器

Background radiations which bathe the Universe provide important clues to the history of the Universe and can even influence its evolution. A search for a background of gravitational radiation in the mHz frequency range by observing the normal modes of the earth shall be undertaken. The approximately two hundred station-years of data collected by the Project IDA global network of seismometers will be analyzed to look for any residual excitations of the quadrupole modes of the earth. In addition a calculation of the level of excitations of these modes by known terrestrial sources will facilitate the evaluation of the ultimate usefulness of the earth as a gravitational wave detector.