Properties of Type Ib protoplanets formed in the simulations (same as in Fig. A.4). The protoplanets presented here are the fragments that have undergone second collapse but do not show any infall velocity signatures indicative of a second core. They are structurally similar to the Type Ia protoplanets in Fig. A.4, however the infall velocities here are almost zero or slightly negative, that is, indicative of a slowly-expanding protoplanet core.