Quadrupole
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A pair of dipoles with opposite directions separated by a small distance. A pair of electric dipoles is called an electric quadrupole, and a pair of magnetic dipoles is called a magnetic quadrupole. When the mass distribution is quadrupole and is accompanied by time changes such as rotation or vibration, gravitational waves are emitted. Quadrupole. Source: About Shogakukan Digital Daijisen Information | Legend |
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向きが反対の双極子がわずかな距離を隔てて対になったもの。電気双極子の対は電気四極子、磁気双極子の対は磁気四極子とよぶ。また、質量分布が四重極であり、かつ回転や振動などの時間変化を伴う場合、重力波が放出される。四極子。
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