论文标题
拟议的纽约Virginis系外行星的轨道稳定性
Orbital Stability of Proposed NY Virginis Exoplanets
论文作者
论文摘要
ER等。 （2021）最近提出了一种两行型解决方案，以说明从SDB二进制纽约州观察到的日食时序变化（ETV）。我们使用数值模拟和混沌行为分析测试了提出的行星系统，以实现轨道稳定性。在每个参数中已发布的不确定性范围有所不同的最佳拟合轨道以及在每个参数中的不确定性范围有所不同的时间表远低于PCEB阶段的假定寿命（$ \ sim $ 100 myr）。提出的拟议的环形同伴无法为观察到的ETV提供完整的解释。
Er et al. (2021) recently proposed a two-planet solution to account for eclipse timing variations (ETVs) observed from the sdB binary NY Virginis. We tested the proposed planetary system for orbit stability using both numerical simulations and chaotic behavior analysis. The best-fit orbits, as well as those with parameters varying by the published uncertainty range in each parameter, were unstable on a timescale much less than the presumed lifetime of the PCEB phase ($\sim$100 Myr). suggesting that the proposed circumbinary companions fail to provide a complete explanation for the observed ETVs.
