论文标题
2001 SN263-其不规则形状对邻里动态的贡献
2001 SN263 -- the contribution of their irregular shapes on the neighborhood dynamics
论文作者
论文摘要
阿斯特（Aster）任务的第一个提议的巴西任务是三重小行星系统（153591）2001 SN263作为目标。任务的主要目标之一是分析系统的物理和动态结构，以了解其起源和进化。目前的工作旨在分析小行星的不规则形状如何干扰系统周围的稳定性。结果表明，身体的不规则形状在附近的动力学中起着重要作用。例如，由于（153591）2001 SN263 Alpha的形状引起的扰动会影响（153591）2001 SN263伽玛附近的稳定性。同样，（153591）2001 SN263 Beta的不规则性在其附近的环境中造成了明显的不稳定。如预期的那样，训练案例最不稳定，而逆行场景提出了更大的稳定性。此外，我们研究了太阳辐射压力如何渗透不同尺寸的颗粒，绕过三个系统。我们发现，半径为10-50 cm的颗粒可以在逆行情况下存活辐射压力。同时，为了抵抗太阳辐射，前轨道中的颗粒必须大于逆行轨道中的颗粒，至少一个数量级。
The first proposed Brazilian mission to deep space, the ASTER mission, has the triple asteroid system (153591) 2001 SN263 as a target. One of the mission's main goals is to analyze the physical and dynamical structures of the system to understand its origin and evolution. The present work aims to analyze how the asteroid's irregular shape interferes with the stability around the system. The results show that the irregular shape of the bodies plays an important role in the dynamics nearby the system. For instance, the perturbation due to the (153591) 2001 SN263 Alpha's shape affects the stability in the (153591) 2001 SN263 Gamma's vicinity. Similarly, the (153591) 2001 SN263 Beta's irregularity causes a significant instability in its nearby environment. As expected, the prograde case is the most unstable, while the retrograde scenario presents more stability. Additionally, we investigate how the solar radiation pressure perturbs particles of different sizes orbiting the triple system. We found that particles with a 10-50 cm radius could survive the radiation pressure for the retrograde case. Meanwhile, to resist solar radiation, the particles in prograde orbit must be larger than the particles in retrograde orbits, at least one order of magnitude.
