Fig. 5.

Body rotation frequency vs. fluidity averaged over all PVP360k datasets. Blue line, fitting the constant-torque result, Eq. 10a, in the range $0\hspace{0.17em}\mathrm{\lesssim }\hspace{0.17em}\eta \hspace{0.17em}\mathrm{\lesssim }\hspace{0.17em}0.15\hspace{0.5em}\mathrm{c}{\mathrm{P}}^{-1}$. Pink curve, fitting the linear-torque result, Eq. 10b, in the range $\eta \hspace{0.17em}\mathrm{\gtrsim }\hspace{0.17em}0.2\hspace{0.5em}\mathrm{c}{\mathrm{P}}^{-1}$. The thickness of the line/curve indicates uncertainties associated with choosing the boundary between the two kinds of behavior. (Inset) Log-log plot to show that Eq. 10b alone does not fit the data.