We summarize the current state of observations of circumplanetary dust populations, including both dilute and dense rings and tori around the giant planets, ejecta clouds engulfing airless moons, and rings around smaller planetary bodies throughout the Solar System. We also discuss the theoretical models that enable these observations to be understood in terms of the sources, sinks and transport of various dust populations. The dynamics and resulting transport of the particles can be quite complex, due to the fact that their motion is influenced by neutral and plasma drag, radiation pressure, and electromagnetic forces—all in addition to gravity. The relative importance of these forces depends on the environment, as well as the makeup and size of the particles. Possible dust sources include the generation of ejecta particles by impacts, active volcanoes and geysers, and the capture of exogenous particles. Possible dust sinks include collisions with moons, rings, or the central planet, erosion due to sublimation and sputtering, even ejection and escape from the circumplanetary environment.

中文翻译：

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环绕行星的尘埃种群

我们总结了目前对环绕行星尘埃种群的观测状态，包括巨行星周围的稀和稠环和环，喷射物云吞没了没有空气的卫星，以及整个太阳系中较小行星体周围的环。我们还讨论了使这些观测结果能够从各种尘埃种群的来源、汇和运输方面得到理解的理论模型。粒子的动力学和由此产生的传输可能非常复杂，因为它们的运动受到中性和等离子体阻力、辐射压力和电磁力的影响——除了重力之外。这些力的相对重要性取决于环境以及粒子的构成和大小。可能的灰尘来源包括撞击产生的喷射物颗粒，活火山和间歇泉，以及捕获外源粒子。可能的尘埃汇包括与卫星、环或中央行星的碰撞、升华和溅射造成的侵蚀，甚至从环行星环境中喷射和逃逸。