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Table 1

Summary of the runs.

Run Ra Pr δn Roc Re Co Emer/Ekin Erot/Ekin DR Activity cycle
A 3.93 × 105 39.9 2.5 0.73 33 1.34 −0.184 −0.185 0.25 3.77 × 10-3 0.173 0.09 0.95 AS fairly regular
B 3.54 × 105 20.3 2.25 0.69 32 1.35 −0.158 −0.143 0.24 2.87 × 10-3 0.134 0.19 0.84 AS fairly regular
BC 3.54 × 105 15.6 2.1 0.67 32 1.38 −0.151 −0.134 0.23 2.69 × 10-3 0.155 0.24 0.77 AS fairly regular
C 3.16 × 105 13.6 2.0 0.65 30 1.44 0.033 0.014 0.27 1.05 × 10-3 0.341 0.28 0.70 SL intermittent
D 2.92 × 105 11.3 1.85 0.63 26 1.67 0.118 0.059 0.26 0.67 × 10-3 0.487 0.33 0.57 SL irregular
E 2.77 × 105 10.2 1.75 0.61 25 1.75 0.111 0.057 0.23 0.81 × 10-3 0.468 0.37 0.52 SL irregular
D0 2.92 × 105 11.3 1.85 0.63 26 1.67 0.118 0.059 0.26 0.67 × 10-3 0.487 0.33 0.57 SL irregular
D1 3.16 × 105 13.6 2.00 0.65 30 1.46 0.013 0.008 0.29 1.53 × 10-3 0.333 0.28 0.71 SL irregular
D2 3.31 × 105 15.7 2.10 0.67 31 1.40 −0.069 −0.074 0.21 1.70 × 10-3 0.121 0.24 0.76 AS irregular
D3 3.47 × 105 18.5 2.20 0.68 32 1.38 −0.153 −0.140 0.23 2.69 × 10-3 0.143 0.20 0.81 AS fairly regular
D4 3.62 × 105 22.5 2.30 0.70 32 1.36 −0.167 −0.158 0.24 3.17 × 10-3 0.149 0.17 0.86 AS fairly regular
A0 3.93 × 105 39.9 2.5 0.73 33 1.34 −0.184 −0.185 0.25 3.77 × 10-3 0.173 0.09 0.95 AS fairly regular
A1 3.85 × 105 33.3 2.45 0.72 32 1.36 −0.172 −0.184 0.25 3.57 × 10-3 0.163 0.11 0.92 AS fairly regular
A2 3.78 × 105 28.5 2.4 0.71 32 1.36 −0.135 −0.144 0.23 2.93 × 10-3 0.122 0.13 0.89 AS irregular
A3 3.62 × 105 22.3 2.3 0.70 32 1.38 −0.154 −0.150 0.23 2.95 × 10-3 0.126 0.17 0.85 AS irregular
A4 3.47 × 105 18.3 2.2 0.68 32 1.38 −0.141 −0.133 0.23 2.79 × 10-3 0.124 0.20 0.81 AS irregular
A5 3.31 × 105 15.5 2.1 0.67 31 1.41 −0.075 −0.073 0.23 2.04 × 10-3 0.142 0.24 0.76 AS irregular
A6 3.16 × 105 13.4 2.0 0.65 30 1.44 0.066 0.017 0.24 1.40 × 10-3 0.212 0.28 0.71 SL irregular
A7 3.00 × 105 11.9 1.9 0.63 29 1.53 0.091 0.055 0.31 0.58 × 10-3 0.499 0.31 0.62 SL irregular
A8 2.85 × 105 10.7 1.8 0.62 27 1.61 0.121 0.073 0.29 0.61 × 10-3 0.553 0.35 0.54 SL irregular
B′ 3.54 × 105 20.3 2.25 0.69 32 1.34 −0.154 −0.149 0.21 3.66 × 10-3 0.117 0.19 0.82 AS fairly regular
B′′ 3.54 × 105 20.3 2.25 0.69 32 1.36 −0.132 −0.140 0.25 2.66 × 10-3 0.128 0.19 0.85 AS fairly regular

Notes. In all runs, Pm = 1, by taking χSGS(r1) = 5 × 108 m2 s-1, ν = 9.3 × 107 m2 s-1, PrSGS = 0.25, ℒ = 3.85 × 10-5, Ta = 2.98 × 106, ξ = 0.0325, which gives , Ω0/ Ω⊙ = 1, and the grid resolution is 128 × 256 × 128. The volume and time averaged total kinetic energy in units of GM⊙ρ0/R⊙ is and the kinetic energies of the meridional circulation and the differential rotation are and , respectively. The quantities and are the fractions of total flux transported by radiative conduction and resolved convection at the middle of the convection zone. Here, “DR” stands for differential rotation. Runs B′ and B′′ are same as Run B, but with larger (± 84°) and smaller (± 66°) latitudinal extents, respectively.

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