The inner part of the disk is either accreted by the star or ejected by the bipolar jets , .
The outer part can evaporate under the star 's powerful UV radiation during the T Tauri stage or by nearby stars .
The inner part of the disk is either accreted by the star or ejected by the bipolar jets , whereas the outer part can evaporate under the star 's powerful UV radiation during the T Tauri stage or by nearby stars .