EXTENDED STRUCTURES AROUND YSO IN MID-IR BROAD EMISSION FEATURES

We present high-spatial-resolution, mid-IR images of young stellar obj ects (YSO). Images were obtained with MIRAC (Mid-InfraRed Array Camera ) at wavelengths of grain continuum and feature emission near 10 and 2 0 mu m. Three of the objects observed (WL 16, TY CrA and MWC 1080) sho w structure and extended emission (on the order of 1200 AU or greater) at wavelengths of the UIR (Unidentified InfraRed) emission features. Mid-IR imaging of other sources in these clouds which do not exhibit U IR features (ELias 29 and R CrA) shows these sources to be point-libe. We have produced morphological models based on the mid-IR images for the observed extended structures.