新型重力探测器B的引力波探测
Novel Gravity Probe B Gravitational Wave Detection
摘要：
重力探测器B（GP-B）卫星实验将以极高的精度测量机载陀螺仪的进动。这种岁差是由广义相对论预测的，这种岁差的一个组成部分是由地球自转引起的“坐标系拖曳”或透镜-瑟林效应，另一个组成部分是大地测量效应。然而，一种新的引力理论预言了第二种更大的“坐标系拖曳”或涡度引起的自旋进动。这种自旋进动分量也将显示新引力理论预测的新引力波的影响，并且已经在几个实验中看到。给出了这些引力波引起的岁差效应的大小和特征，并与GP-B实验数据进行了比较。
英文摘要：
The Gravity Probe B (GP-B) satellite experiment will measure the precession of on-board gyroscopes to extraordinary accuracy. Such precessions are predicted by General Relativity (GR), and one component of this precession is the `frame-dragging' or Lense-Thirring effect, which is caused by the rotation of the earth, and the other is the geodetic effect. A new theory of gravity predicts, however, a second and much larger `frame-dragging' or vorticity induced spin precession. This spin precession component will also display the effects of novel gravitational waves which are predicted by the new theory of gravity, and which have already been seen in several experiments. The magnitude and signature of these gravitational wave induced precession effects is given for comparison with the GP-B experimental data.
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