论文标题
TOI-1338和TIC-172900988系统的轨道
Orbits of the TOI-1338 and TIC-172900988 systems
论文作者
论文摘要
TESS的最新观察表明，TOI-1338和TIC-172900988的系统中存在环形行星。这项工作的目的是对这两个系统中的行星轨道进行建模，并在以前的理论模型的角度研究它们。每个行星从barycenter到时间的距离都使用N体积分模拟，并与半分析，几何和基于开普勒的方法的结果进行了比较。此外，我们推断了由中央二进制室引起的两个行星轨道的最突出频率。我们确认这两个系统似乎都是稳定的。最后，我们研究了TOI-1338系统中额外的候选星球的含义，发现从观察值中暗示的额外的48 m $ _ \ oplus $行星可能位于0.8 au，而不会对系统其他成员的轨道产生任何根本变化。
Recent observations by TESS revealed the existence of circumbinary planets in the systems of TOI-1338 and TIC-172900988. The purpose of this work is to model the planetary orbits in these two systems and study them under the perspective of previous theoretical models. Each planet's distance from the barycenter through time is simulated using n-body integrations and is compared with outcomes from a semi-analytic, a geometric and a Keplerian-based approach. Furthermore, we infer the most prominent frequencies of both planets' orbits induced by the central binaries. We confirm that both systems appear to be stable. Lastly, we examine the implications of an additional candidate planet in TOI-1338 system finding that an extra, 48 M$_\oplus$ planet that has been hinted from observations could be located at 0.8 AU without generating any radical changes to the orbits of the other members of the system.
