论文标题
2010年之后，卡西尼分区的尘土飞扬的环形变化
Changes in a Dusty Ringlet in the Cassini Division after 2010
论文作者
论文摘要
一个指定R/2006 S3的尘土飞扬的环，也称为“迷人的环”，距离Cassini分区的Laplace Gap内的土星中心约119,940公里。在2010年之前，环将具有简单的径向轮廓和一个可预测的偏心形状，具有两个组件，一个由太阳辐射压力强迫，另一个则在行星周围自由预进。然而，自2012年底以来，卡西尼航天器的观察结果表明，从较早的观察结果中不存在的环内延伸的物质架子。对2012年之后获得的图像的仔细检查表明，在2010年至2012年之间的某个时候，环圈偏心率的自由不必要的组成部分增加了50％以上，并且在2012年之后至少3年以后，Ringlet具有纵向的亮度变化，这些变化在行星周围旋转的速率范围为范围，范围与轨道半距离大约60 km的轨道半轴轴轴线相对应。因此，一些事件在2010年至2012年底之间打扰了这一戒指。
A dusty ringlet designated R/2006 S3, also known as the "Charming Ringlet", is located around 119,940 km from the center of Saturn within the Laplace Gap in the Cassini Division. Prior to 2010, the ringlet had a simple radial profile and a predictable eccentric shape with two components, one forced by solar radiation pressure and the other freely precessing around the planet. However, observations made by the Cassini spacecraft since late 2012 revealed a shelf of material extending inwards from the ringlet that was not present in the earlier observations. Closer inspection of images obtained after 2012 shows that sometime between 2010 and 2012 the freely-precessing component of the ringlet's eccentricity increased by over 50%, and that for at least 3 years after 2012 the ringlet had longitudinal brightness variations that rotated around the planet at a range of rates corresponding to roughly 60 km in orbital semi-major axis. Some event therefore disturbed this ringlet between 2010 and late 2012.
