论文标题
土星的环弧粒子中浸入的月球的影响
Effects of immersed moonlets in the ring arc particles of Saturn
论文作者
论文摘要
环弧是与附近卫星的旋旋共振中颗粒的结果。土星和海王星系统中存在弧线，在土星中，它们也与沉浸在其上的小卫星有关。卫星aegaeon浸入了g〜环弧中，卫星和甲基的卫星嵌入了以它们命名的弧中。由于ARC的大多数种群是由$ $ $ M大小的颗粒形成的，因此耗散效应，例如等离子体阻力和太阳辐射力，会降低弧的寿命。我们通过计算质量产量率和在电弧颗粒中引起的扰动来分析浸入卫星对这些弧的影响。通过比较颗粒的寿命和质量产量率，我们得出的结论是，Aegaeon，Anthe和Methone并没有充当其弧的来源。我们通过分析由不同大小的沉浸月球形成的假设情景进一步迈出了一步。结果，我们发现，无论假设月球的大小（从约0.10 km至4.0 km）的大小都不会充当来源。这些弧线是临时结构，它们将在很短的时间内消失。
Ring arcs are the result of particles in corotation resonances with nearby satellites. Arcs are present in Saturn and Neptune systems, in Saturn they are also associated with small satellites immersed on them. The satellite Aegaeon is immersed in the G~ring arc, and the satellites Anthe and Methone are embedded in arcs named after them. Since most of the population of the arcs is formed by $μ$m-sized particles the dissipative effects, such as the plasma drag and the solar radiation force, decrease the lifetime of the arcs. We analysed the effects of the immersed satellites on these arcs by computing the mass production rate and the perturbation caused by them in the arc particles. By comparing the lifetime of the particles and the mass production rate we concluded that Aegaeon, Anthe and Methone did not act as sources for their arcs. We took a step further by analysing a hypothetical scenario formed by an immersed moonlet of different sizes. As a result we found that regardless the size of the hypothetical moonlet (from about 0.10 km to 4.0 km) these moonlets will not act as a source. These arcs are temporary structures and they will disappear in a very short period of time.
