IRAS 20050+2720: An Embedded Young Cluster Associated with a Multipolar Outflow

摘要

We obtained near-IR images at 15 μm of IRAS 20050+2720, a very red far-infrared source with a multipolar outflow (as noted by Bachiller et al.). Of the 212 sources we detected, half of them are probably members of an embedded cluster around the IRAS source. More than 50/100 of the cluster members show near-IR excesses, suggesting that they are premain-sequence stars with circumstellar emission. The luminosity functions of the cluster show turnovers and slopes consistent with premain-sequence model predictions for an average cluster age of ～1 Myr. Three subclusters are identified within the cluster.