High-resolution observations in T Cha: the ATCA and ALMA view

We present high-resolution observations with the ATCA interferometer at 7 mm and 1.7 cm, as well as with ALMA at 870 microns to characterize the physical parameters of the outer disk and gap in the transitional disk T Cha, as well as the
thermal dust emission at submillimeter and centimeter wavelengths.  We also compare our results with models predictions.