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arXiv 2007.06745astro-ph.EPastro-ph.SR
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隐藏世界:多行星系统中未探测行星的动力学结构预测及其在TESS系统中的应用

Hidden Worlds: Dynamical Architecture Predictions of Undetected Planets in Multi-planet Systems and Applications to TESS Systems

Jeremy Dietrich, Daniel Apai

摘要:

多行星系统为系外行星科学提供了丰富的信息,但我们对行星结构的理解是不完整的。进一步探测这些系统将有助于深入了解轨道结构和形成途径。在这里,我们提出了一个模型,通过人口统计来预测这些系统中以前未被发现的行星。该模型考虑了凌日和非凌日行星,并可以测试添加一个以上的行星。我们的测试表明,该模型的轨道周期预测对系统架构中的扰动具有鲁棒性,其数量级为百分之几,远远大于当前的不确定性。将其应用于TESS的多行星系统,根据预测的过境深度和概率提供了一个优先目标列表,用于档案搜索和指导地面跟踪观测寻找隐藏的行星。

英文摘要:

Multi-planet systems produce a wealth of information for exoplanet science, but our understanding of planetary architectures is incomplete. Probing these systems further will provide insight into orbital architectures and formation pathways. Here we present a model to predict previously undetected planets in these systems via population statistics. The model considers both transiting and non-transiting planets, and can test the addition of more than one planet. Our tests show the model's orbital period predictions are robust to perturbations in system architectures on the order of a few percent, much larger than current uncertainties. Applying it to the multi-planet systems from TESS provides a prioritized list of targets, based on predicted transit depth and probability, for archival searches and for guiding ground-based follow-up observations hunting for hidden planets.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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