逃逸的冥王星的动力学演化，半人马座的另一个来源
Dynamical evolution of escaped plutinos, another source of Centaurs
摘要：
在以前的研究中，人们发现了普卢蒂诺种群中存在的弱混沌轨道，它们的扩散非常缓慢。这些轨道对应于长期的普路蒂诺逃逸者，然后代表了目前正在逃离共振的普路蒂诺。在本文中，我们进行数值模拟，以探讨最近逃离共振的动力学演化。数值模拟分为两部分。在第一个实验中，我们在共振中进化了20,000个测试粒子，以检测和选择长期逃避者。在第二部分中，我们数值积分了所选的逃逸后的plutino，以研究它们的动力学行为。我们的主要结果包括描述的路线逃脱的冥王星和他们的演变在半人马座地区。我们得到了一个普丁诺的逃逸率，在每10年1到10之间。逃逸的普卢蒂诺在半人马座地区的平均寿命为1.08亿年，它们对半人马座人口的贡献将是半人马座总人口的一小部分，不到6%。这样一来，逃跑的普卢蒂诺就成了半人马的第二来源。
英文摘要：
It was shown in previous works the existence of weakly chaotic orbits in the plutino population that diffuse very slowly. These orbits correspond to long-term plutino escapers and then represent the plutinos that are escaping from the resonance at present. In this paper we perform numerical simulations in order to explore the dynamical evolution of plutinos recently escaped from the resonance. The numerical simulations were divided in two parts. In the first one we evolved 20,000 test particles in the resonance in order to detect and select the long-term escapers. In the second one, we numerically integrate the selected escaped plutinos in order to study their dynamical post escaped behavior. Our main results include the characterization of the routes of escape of plutinos and their evolution in the Centaur zone. We obtained a present rate of escape of plutinos between 1 and 10 every 10 years. The escaped plutinos have a mean lifetime in the Centaur zone of 108 Myr and their contribution to the Centaur population would be a fraction of less than 6 % of the total Centaur population. In this way, escaped plutinos would be a secondary source of Centaurs.
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。
