Program: GN-2008B-C-2

Our Spitzer survey of the Taurus molecular cloud has newly revealed candidates of transitional disks and Taurus members. Many of them are very low-mass objects, thus the observations can expand the knowledge of disk properties for very low-mass members. However, $Spitzer$'s relatively coarse spatial resolution cannot resolve individual disks or close binary companions. Therefore, we propose high-resolution imaging observations using adaptive optics to clarify their multiplicity status. The capability of laser guide star system allows us to determine the multiplicity for lower-mass objects. The results will assure the interpretation of disk structure and will increase the sample of transitional disks which are the objects with great importance to investigate disk evolution possibly related to planet formation. In addition, we will be able to contribute to improving the statistics of very low-mass binaries in Taurus.