CODE星表中的新进展
News in the CODE Catalogue
AI总结：
本研究更新了彗星轨道及其动力学演化CODE星表，覆盖1900-2021年几乎全部奥尔特尖峰彗星，新增基于两种动力学模型的前后轨道变体，采用最新StePPeD数据库计算恒星摄动影响。
摘要：
本文介绍了彗星轨道及其动力学演化星表（Catalogue of Cometary Orbits and their Dynamical Evolution，简称CODE）的更新内容与新增要素，该星表最初版本由Królikowska与Dybczyński于2020年发布。目前，CODE星表为1900年至2021年间发现的几乎全部奥尔特尖峰彗星样本提供了丰富的轨道解集合。我们通常会基于不同的非引力模型或不同的观测资料处理方式，提供多种轨道解。一项重要的新增内容是，“前次”轨道（对应前一次近日点或过去距太阳120000天文单位时的轨道）与“下次”轨道（对应下一次近日点或离开行星带后距太阳120000天文单位时的轨道）均提供两种变体。一种变体的动力学模型仅考虑完整的银河系潮汐力（忽略所有单个恒星），另一种则同时纳入了目前已知的所有恒星摄动体。前次与下次轨道的计算均采用了最新的潜在恒星摄动体StePPeD数据库完成。
英文摘要：
We describe here updates and new elements of the Catalogue of Cometary Orbits and their Dynamical Evolution (CODE) that, in its original 2020 version, has been introduced by Królikowska & Dybczyński (2020). Currently, the CODE Catalogue offers rich sets of orbital solutions for almost a complete sample of Oort spike comets discovered between 1900 and 2021. We often offer several orbital solutions based on different nongravitational force models or different observational material treatments. An important novelty is that the `previous` (at previous perihelion or at 120,000 au from the Sun in the past) and `next` (at next perihelion or 120,000 au after leaving the planetary zone) orbits are given in two variants. One with the dynamical model restricted only to the full Galactic tide (with all individual stars omitted) and the second one, where all currently known stellar perturbers are also taken into account. Calculations of the previous and next orbits were performed using the up-to-date StePPeD database of potential stellar perturbers.
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。
