Histograms of the temperature anisostropies and instability plane. Left panel: normalized histograms of temperature anisotropy, defined as T_⊥/T_‖, for proton core (red line), proton beam (blue line), and alphas (green line). Right panel: temperature anisotropy vs. β_‖, commonly known as instability plane for core (red), beam (blue), and alphas (green). Different solid lines indicate plasma instabilities: proton cyclotron and mirror for T_⊥/T_‖ > 1 and oblique firehose and parallel firehose for T_⊥/T_‖ < 1.