Evolution of a representative protoplanet (Run 5). Panels a and b: spherically-averaged density and temperature, respectively. Panels c and d: rotational (azimuthally-averaged) and radial infall velocity (spherically-averaged). The first and second hydrostatic cores boundaries are identified by the peaks in the infall velocity profiles (the positions of the boundaries are marked with the short vertical lines). Panel e: mass within a given radius within each fragment. Panel f: ratio of total energies interior to a given radius: α_therm = E_ther∕E_grav (top set of lines) and β_rot = E_rot∕E_grav (bottom set of lines). The rotational energy is significant only in the outer parts of the fragment.