论文标题
重力辅助作为相对论重力的测试
Gravity assist as a test of relativistic gravity
论文作者
论文摘要
我们认为重力辅助操作，即对航天器在行星附近通过时的校正，是评估Eddington Post-Newtonian参数$β$和$γ$的工具，表征了Gravity的度量理论中的真空球球体对称重力领域。我们估计$β$和$γ$变异对从地球轨道发射并在金星附近紧密通过的探针的特定轨迹的影响，在那里相对论校正稍微改变了金星重力场中探针散射的影响参数。特别是表明，在$β$或$γ$中的$ 10^{ - 4} $的变化导致探头的aphelion位置的转移约50公里。
We consider the gravity assist maneuver, that is, a correction of spacecraft motion at its passing near a planet, as a tool for evaluating the Eddington post-Newtonian parameters $β$ and $γ$, characterizing vacuum spherically symmetric gravitation fields in metric theories of gravity. We estimate the effect of variation in $β$ and $γ$ on a particular trajectory of a probe launched from the Earth's orbit and passing closely near Venus, where relativistic corrections slightly change the impact parameter of probe scattering in Venus's gravitational field. It is shown, in particular, that a change of $10^{-4}$ in $β$ or $γ$ leads to a shift of about 50 km in the probe's aphelion position.
