A New Planet in the Solar System? Investigating the Role of Undiscovered Planets on the Formation and Evolution of the Kuiper Belt in the Outer Solar System

太阳系中有一颗新行星？

• 批准号: 20K04049
• 负责人: ソフィアリカフィカ パトリック
• 金额: $ 1.33万
• 依托单位: Kindai University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2020
• 资助国家: 日本
• 起止时间: 2020-04-01 至 2024-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-20K04049/
• 关键词: 太陽系; 太陽系外縁天体; カイパーベルト; 未知の惑星; solar system; trans-Neptunian objects; Kuiper Belt; undiscovered planets; Neptune; Kuiper belt

This research has two main goals: (1) How does a Kuiper Belt Planet (KBP) located beyond Neptune perturb the orbits of trans-Neptunian objects (TNOs)? (2) The Kuiper Belt orbital structure by considering the existence of KBPs in the early solar system. The main achievements so far are:- The model of the intrinsic Kuiper Belt was completed in FY2022. This model considered the real resonant + distant populations and investigated the effects of potential KBPs. This model simulations finished during 2022. Overall, I found that KBPs located beyond 100 astronomical units and with masses comparable to or less than Earth’s allowed the survival of these observed populations. Thus, I validated the results by constraining the properties of the investigated KBPs. After thoroughly analyzing the data of the intrinsic Kuiper Belt model described above, I summarized the main results in a paper by the end of FY2022 and submitted it to a journal with peer review. Currently, this paper is under revision.- The model of formation of the Kuiper Belt including and not including KBPs was executed successfully in FY2022. This model considered the early solar system and investigated the effects of primordial KBPs. This model simulations finished during 2022. I have recently finished analyzing the data from these simulations. Overall, I found that many systems with KBPs can better explain the Kuiper Belt structure. I intend to summarize the main results in a new paper during 2023.In conclusion, as planned, the entire achievement of the main goals was obtained by the end of FY2022.

这项研究有两个主要目标：（1）位于海王星之外的柯伊伯带行星（KBP）如何扰动海王星外天体（TNO）的轨道？(2)通过考虑早期太阳系中KBPs的存在，计算了柯伊伯带的轨道结构。到目前为止的主要成果是：-内在柯伊伯带的模型于2022财年完成。该模型考虑了真实的共振+远距离种群，并研究了潜在KBP的影响。该模型模拟于二零二二年完成。总的来说，我发现KBP位于100个天文单位以上，质量与地球相当或小于地球，允许这些观察到的种群生存。因此，我通过约束所研究的KBP的属性来验证结果。在彻底分析了上述固有柯伊伯带模型的数据后，我在2022财年末的一篇论文中总结了主要结果，并将其提交给一份期刊进行同行评审。目前，该文件正在修订中。包括及不包括KBP的柯伊伯带形成模型已于二零二二财政年度成功执行。该模型考虑了早期太阳系，并研究了原始KBP的影响。该模型模拟于二零二二年完成。我最近完成了对这些模拟数据的分析。总的来说，我发现许多具有KBP的系统可以更好地解释柯伊伯带结构。我打算在2023年的新论文中总结主要成果。总之，按照计划，到2022财年年底，主要目标已全部实现。

项目成果

太陽系外縁に新惑星の存在の究明

调查外太阳系是否存在新行星

• 发表时间: 2022
• 作者: Patryk Sofia Lykawka (パトリック ソフィア リカフィカ)

Investigating the orbital structure of the distant Kuiper Belt: Evidence for an undiscovered planet?

研究遥远柯伊伯带的轨道结构：存在未被发现行星的证据？

• 发表时间: 2022
• 作者: Patryk Sofia Lykawka (パトリック ソフィア リカフィカ)

遠いカイパーベルトの軌道構造の究明：未知の惑星の存在？

遥远柯伊伯带轨道结构调查：是否存在未知行星？

• 发表时间: 2022
• 作者: Seki;Daikichi; Otsuji;Kenichi; Ishii;Takako T.; Asai;Ayumi; Ichimoto;Kiyoshi;Patryk Sofia Lykawka (パトリック ソフィア リカフィカ)
• 通讯作者: Patryk Sofia Lykawka (パトリック ソフィア リカフィカ)

Investigating the existence of a new planet in the outer solar system

调查外太阳系是否存在新行星

• 发表时间: 2022
• 作者: Patryk Sofia Lykawka

Investigating the existence of a new planet in the far outer solar system

调查遥远的太阳系外是否存在一颗新行星

• 发表时间: 2021
• 作者: 大津天斗;浅井歩;田中駿次; 森正夫;道上達広;Patryk Sofia Lykawka
• 通讯作者: Patryk Sofia Lykawka