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PROPER MOTION OF BINARY PULSARS AS A SOURCE OF SECULAR VARIATIONS OF ORBITAL PARAMETERS

机译:二元脉冲的正确运动作为轨道参数的随机变化源

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The proper motion of a binary pulsar gradually changes the apparent geometrical orientation of its orbital plane. Consequently, the derived values of the projected semimajor axis of the orbit and the longitude of orbital periastron have systematic errors that limit the precision of fundamental tests of relativistic gravity in the strong gravity field regime unless this effect is taken into account. On the other hand, possible observation of this effect with relativistic contributions calculated using general relativity may provide a tool for determining the orbital inclination and the longitude of the ascending node of the binary. This same technique may also be used in optical spectral observations of binary stars that possess a sufficiently high-quality determination of their radial velocity curve.
机译:二元脉冲星的适当运动逐渐改变了其轨道平面的表观几何取向。因此,除非考虑到这种影响,否则在强重力场条件下,投影的半长轴的投影值和轨道周变星的经度的系统误差会限制相对论性重力基本测试的精度。另一方面,使用广义相对论计算出的相对论贡献可能对该效应进行观测,可提供一种确定二元升数节点的轨道倾角和经度的工具。同样的技术也可以用于双星的光谱观测,这些星具有足够高质量的径向速度曲线测定。

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