Figure 2. Parameter spaces.

Density plots show the order parameters as well as the metastability and the chimera-like index in the same (g_ch, g_el) plain. The order parameter of each community is shown in (a–f), and of the entire network in (g). The metastability index is shown in (h) and the chimera-like index in (i) (note the different range of values in the color bar in (h,i)). The marked points A (g_ch = 0.015, g_el = 1.7), B (g_ch = 0.18, g_el = 0.7) and C (g_ch = 0.015, g_el = 0.5) denote three different dynamical regimes. Synchronization is clear within each community in the regime where point A is chosen and corresponds to low values of both, λ and χ. Point B characterizes a regime where the synchronization index of each community and of the entire network is very low, χ is also low and λ is high. This indicates a highly metastable behavior and desynchronous dynamics. An interesting behavior is found on the edge that separates those two regimes, where point C is located. Some communities (obviously 2 and 4, less clearly 6) are synchronous and others (1, 3 and 5) are desynchronous. Furthermore, λ is low, whereas χ is high, meaning that this state is not metastable and chimera-like dynamics can be observed. The dynamical behavior in these points is illustrated clearly in Fig. 3.