Phase portrait for the correlation between the angular momentum J/J_th and the alignment angle Θ. The plotted grain dynamic is calculated with the parameters of the gas and the considered MET efficiency Q_mech being identical to those presented in Fig. 5. Note that negative values of J represent the case when the vectors of the grain’s principal axis â₁ and J are antiparallel and vice versa. The weights w_i describe the probability to reach a certain attractor point from any arbitrary starting point within the phase portrait.