在良好分离的双星中观测和编目系外行星的新前景
New prospects for observing and cataloguing exoplanets in well detached binaries
摘要：
本文研究了在分离良好的双星系统中利用食时变化探测星周行星和环双星行星的有利条件。我们研究了分离良好的双星系统的动力学，恒星间距从0.5到3~AU，以确定地面望远镜和空间望远镜（如以前的任务CoRoT和开普勒和未来的空间任务柏拉图，苔丝和基奥普斯）检测到这种变化的概率。对于选定的恒星分离的动力学配置（拱星和拱双星）可能是可观察的。我们使用完整的三体问题作为动力学模型进行了数值模拟。通过计算不同质量的次级恒星和系外行星（地球、海王星和木星大小）的ETV图，研究了系统的动力学稳定性和ETV。此外，我们还改变了行星和双星的偏心率。我们的结论是，许多ETV的振幅大到足以检测双星系统中的系外行星。作为一个应用程序，我们准备了我们在这篇文章中介绍的双星系统中的系外行星目录的统计数据，并将统计数据与我们用于计算的参数空间进行了比较。除了这些星表的统计数据外，我们还通过调查几个星表中分离良好的双星系统来扩大它们，并讨论了进一步候选者的可能性。
英文摘要：
This paper is devoted to study the circumstances favourable to detect circumstellar and circumbinary planets in well detached binary-star-systems using eclipse timing variations (ETVs). We investigated the dynamics of well detached binary star systems with a star separation from 0.5 to 3~AU, to determine the probability of the detection of such variations with ground based telescopes and space telescopes (like former missions CoRoT and Kepler and future space missions Plato, Tess and Cheops). For the chosen star separations both dynamical configurations (circumstellar and circumbinary) may be observable. We performed numerical simulations by using the full three-body problem as dynamical model. The dynamical stability and the ETVs are investigated by computing ETV maps for different masses of the secondary star and the exoplanet (Earth, Neptune and Jupiter size). In addition we changed the planet's and binary's eccentricities. We conclude that many amplitudes of ETVs are large enough to detect exoplanets in binary star systems. As an application, we prepared statistics of the catalogue of exoplanets in binary star systems which we introduce in this article and compared the statistics with our parameter-space which we used for our calculations. In addition to these statistics of the catalogue we enlarged them by the investigation of well detached binary star systems from several catalogues and discussed the possibility of further candidates.
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