Radiative accelerations (in cgs unit) at 30 Myr in the TGEC and Montrealmodels represented in Fig. 2. The solid curves represents the accelerations in the TGEC model, while the dashed curve represent those in the Montreal model. The long-dashed curve represents the local gravity in the TGEC model. (The local gravity in the Montreal model is not represented as it is indistinguishable from that of the TGEC model.)