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Secular Perturbations from Exterior Giants Strongly Influence Gap Complexity in Peas-in-a-pod Exoplanetary Systems

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العنوان: Secular Perturbations from Exterior Giants Strongly Influence Gap Complexity in Peas-in-a-pod Exoplanetary Systems
المؤلفون: Joseph R. Livesey, Juliette Becker
المصدر: The Astrophysical Journal, Vol 979, Iss 2, p 202 (2025)
بيانات النشر: IOP Publishing, 2025.
سنة النشر: 2025
المجموعة: LCC:Astrophysics
مصطلحات موضوعية: Exoplanet detection methods, Exoplanet dynamics, Planetary system formation, Planetary system evolution, Astrophysics, QB460-466
الوصف: It has been demonstrated that systems of tightly packed inner planets with giant exterior companions tend to have less regular orbital spacings than those without such companions. We investigate whether this observed increase in the gap complexity of the inner systems can be explained solely as the result of secular dynamics caused by the disturbing potential of the exterior companions. Amplification of mutual orbital inclinations in the inner system due to such secular dynamics may lead to the inner system attaining nonmutually transiting geometries, thereby creating artificial observed gaps that result in a higher calculated gap complexity. Using second-order secular theory, we compute time-averaged observed gap complexities along a favorable line of sight for a set of hypothetical systems, both with and without an outer giant. We find that these secular interactions can significantly contribute to the observed gap complexity dichotomy in tightly packed multiple-planet systems.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1538-4357
Relation: https://doaj.org/toc/1538-4357
DOI: 10.3847/1538-4357/ada28b
URL الوصول: https://doaj.org/article/72513dc4c8af4e5f8d06ba03f61d374d
رقم الانضمام: edsdoj.72513dc4c8af4e5f8d06ba03f61d374d
قاعدة البيانات: Directory of Open Access Journals
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