论文标题
测试灾难性变量中的第三个身体假设，camelopardalis，qzserpentis，v1007 herculis和bk lyncis
Testing the third body hypothesis in the Cataclysmic Variables LU Camelopardalis, QZSerpentis, V1007 Herculis and BK Lyncis
论文作者
论文摘要
一些灾难性变量（CVS）表现出很长的光度（VLPP）。我们通过将建模的VLPP与在此处研究的四个CV中观察到的一个假设的第三体的特性，最初是在圆形的 - 平面轨道上假定的：{\ sl sl lu camelopardalis}（lu cam），qz serpentis（qz ser），qz serpentis（qz ser），v1007 herculis（v1007 herculis（v1007）和bk lyn and bk lyn and bk lyn and bk lyn and bk lyn and bk lyn和bk lyn and bk lyn and bk lyn and bk。使用分析结果考虑，考虑到第三身体的偏心和低倾斜轨道。二进制组件的选择参数基于每个CV的轨道周期。还计算出第三体轨道变得不稳定之前允许的最小相应的半轴轴。采用了一阶分析后的牛顿后校正，并发现了围角的进动率，但无法解释任何观察到的VLPP。我们还第一次估计了这个假设的第三机构对世俗扰动的影响，对这种CV的传质率。我们确保观察到的可变性幅度也是可比的。满足所有限制的第三体的质量范围为0.63至97个木星质量。我们的结果显示了进一步的证据，支持其中三个CV中的第三尸体的假设，但仅在V1007她的v1007中略有。
Some Cataclysmic Variables (CVs) exhibits a very long photometric period (VLPP). We calculate the properties of a hypothetical third body, initially assumed on circular--planar orbit, by matching the modelled VLPP to the observed one of four CVs studied here: {\sl LU Camelopardalis} (LU Cam), QZ Serpentis (QZ Ser), V1007 Herculis (V1007 Her) and BK Lyncis (BK Lyn). The eccentric and low inclination orbits for a third body are considered using analytical results. The chosen parameters of the binary components are based on the orbital period of each CV. The smallest corresponding semi-major axis permitted before the third body's orbit becomes unstable is also calculated. A first-order analytical post-Newtonian correction is applied, and the rate of precession of the pericentre is found, but it can not explain any of the observed VLPP. For the first time, we also estimate the effect of secular perturbations by this hypothetical third body on the mass transfer rate of such CVs. We made sure that the observed and calculated amplitude of variability was comparable too. The mass of the third body satisfying all constrains range from 0.63 to 97 Jupiter masses. Our results show further evidence supporting the hypothesis of a third body in three of these CVs, but only marginally in V1007 Her.
