标题： NGC 2264中恒星-盘相互作用的多波段观测 显示英文标题

标题： A multiwavelength view of star-disk interaction in NGC 2264

摘要： 变异性是年轻凉星的一个显著特性，尤其是那些被原行星盘包围的恒星。传统的单波段时间序列显示了与吸积、盘结构和伴随的恒星活动相关的复杂特征，但这些过程很难建模。 为了在连接年轻恒星及其盘的时间域性质与底层物理之间取得进展，我们启动了一项前所未有的多波段监测计划：NGC 2264的协调综合观测（"CSI 2264"）。 从2011年12月开始，CSI 2264已经获得了来自斯皮策的空间望远镜提供的30天连续的中红外时间序列数据，同时来自科罗特（CoRoT）和MOST的空间望远镜的光学同步监测数据，钱德拉的X射线观测数据，以及若干地面望远镜的补充数据。 这些观测的非凡光度精度、采样间隔和时间基线使得不同波长下变异性属性的详细相关性成为可能，这些波长对应于从恒星表面到盘内AU范围内的位置。 我们介绍了该计划的初步成果，并讨论了进一步研究年轻恒星及其盘的建模需求。 显示英文摘要

摘要： Variability is a signature property of cool young stars, particularly for those surrounded by disks. Traditional single-band time series display complex features associated with accretion, disk structure, and accompanying stellar activity, but these processes are challenging to model. To make progress in connecting observed time domain properties with the underlying physics of young stars and their disks, we have embarked on an unprecedented multiwavelength monitoring campaign: the Coordinated Synoptic Investigation of NGC 2264 ("CSI 2264"). Beginning in December 2011, CSI 2264 has acquired 30 continuous days of mid-infrared time series from Spitzer, simultaneous optical monitoring from CoRoT and MOST, X-ray observations with Chandra, as well as complementary data from a number of ground-based telescopes. The extraordinary photometric precision, cadence, and time baseline of these observations enable detailed correlation of variability properties at different wavelengths, corresponding to locations from the stellar surface to the inner AU of the disk. We present the early results of the program, and discuss the need for further modeling efforts into young stars and their disks.