YSOVAR infrared photometry in IRAS 20050+2720

We present a time-variability study of young stellar objects (YSOs) in the cluster IRAS 20050+2720, performed at 3.6 and 4.5{mu}m with the Spitzer Space Telescope; this study is...本研究针对IRAS 20050+2720星团中的年轻恒星天体（young stellar objects, YSOs）开展时变特性研究，观测波段为3.6与4.5微米，所用观测设备为斯皮策空间望远镜（Spitzer Space Telescope）；本研究