标题： 邻近年轻运动集团中的碎片盘在ALMA时代 显示英文标题

标题： Debris Disks in Nearby Young Moving Groups in the ALMA Era

摘要： 许多附近年轻运动集团的成员表现出由原恒星周围碎片尘埃引起的红外过量，这些尘埃是通过行星esimal的侵蚀形成的。 由于它们的接近性和精确的年龄，这些集团是研究碎片尘埃和行星esimal带早期演化的优秀实验室。 ALMA可以空间分辨盘状发射，揭示这些带的位置和范围，对行星esimal演化模型施加限制，并使我们能够研究行星与盘的相互作用。 尽管碎片盘中尘埃演化的主流趋势已广为人知，但关于气体演化的信息几乎为零。 在从原行星盘向碎片盘过渡的过程中，甚至气体的起源都存在疑问。 在这里，我们回顾了ALMA通过观测年轻碎片盘提供的令人兴奋的新结果，并讨论了可能的未来研究方向。 显示英文摘要

摘要： Many members of nearby young moving groups exhibit infrared excess attributed to circumstellar debris dust, formed via erosion of planetesimals. With their proximity and well-dated ages, these groups are excellent laboratories for studying the early evolution of debris dust and of planetesimal belts. ALMA can spatially resolve the disk emission, revealing the location and extent of these belts, putting constraints on planetesimal evolution models, and allowing us to study planet-disk interactions. While the main trends of dust evolution in debris disks are well-known, there is almost no information on the evolution of gas. During the transition from protoplanetary to debris state, even the origin of gas is dubious. Here we review the exciting new results ALMA provided by observing young debris disks, and discuss possible future research directions.