Circumstellar Dust of Be Stars Studied by Millimeter and Submillimeter Observations

摘要

Submillimeter and millimeter study is a powerful tool to investigate the properties and distribution of cold dust in circumstellar disks. While much investigation has been done on the pre-main-sequence stellar disks, relatively little is known of the circumstellar dust of evolved main sequence Be stars. Here we present a few such cases where millimeter observations of their dusty envelopes/disks should be pursued.