SIZE DISTRIBUTION OF CIRCUMSTELLAR DISKS IN THE TRAPEZIUM CLUSTER

摘要

What is the typical size of a disk in a stellar young cluster freshly formed? In this paper we present our preliminary results on the size distribution of disks in the Trapezium Cluster, measured in a H_α (0.656μm) image from the HST/WFPC. We also present the spatial distribution of disk-size as a function of the distance to the most important Trapezium OB stars.