Caption: 
Power-law parameter $\psi$ at $\overline{T}=80^\circ$C (a, b), 60$^\circ$C (c, d) and 40$^\circ$C (e, f), both without (a, c, e) and with (b, d, f) light irradiation for varying $\Phi$ (0.67, 1.0, 1.5), each measured two times.

Notes: 
None

Plot data:
plot_0: $\Phi=0.67$
plot_1: $\Phi=1.5$
plot_2: $\Phi=0.67$
plot_3: $\Phi=1.0$
plot_4: $\Phi=1.5$
plot_5: $\Phi=1.0$

