论文标题
牛顿后kozai-lidov机制及其对二元脉冲星的底盘累积转移的影响
Post-Newtonian Kozai-Lidov Mechanism and its Effect on Cumulative Shift of Periastron Time of Binary Pulsar
论文作者
论文摘要
我们通过直接整合牛顿运动后运动方程，研究了分层三重系统中的Kozai-Lidov机制。我们分析了各种具有脉冲星的模型，以评估由带有Kozai-Lidov机制的分层三重系统中的重力波发射引起的二元脉冲星的累积偏移。我们将结果与双重平均方法进行比较。偏心率的偏差，即使很小，对于评估引力波的发射也很重要。我们还通过使用获得的示波器轨道元件来计算围龙时间的累积转移。如果发生Kozai-Lidov振荡，则累积移位曲线将与分离的二进制曲线弯曲不同。如果通过无线电观察检测到这种弯曲，它将是对三个系统的重力波的首次间接观察。
We study the Kozai-Lidov mechanism in a hierarchical triple system in detail by the direct integration of the first-order post Newtonian equations of motion. We analyse a variety of models with a pulsar to evaluate the cumulative shift of the periastron time of a binary pulsar caused by the gravitational wave emission in a hierarchical triple system with Kozai-Lidov mechanism. We compare our results with those by the double-averaging method. The deviation in the eccentricity, even if small, is important in the evaluation of the emission of the gravitational waves. We also calculate the cumulative shift of the periastron time by using obtained osculating orbital elements. If Kozai-Lidov oscillations occur, the cumulative shift curve will bend differently from that of the isolated binary. If such a bending is detected through the radio observation, it will be the first indirect observation of gravitational waves from a triple system.
