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Table 1
Main parameters of the interior model.
Parameter | Description | Value |
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Rp | Planet radius | 6370 km |
Rc | Core radius | 3480 km |
g | Gravitational acceleration | 9.8 m s-2 |
Ts | Surface temperature | 293 K |
ΔTd | Initial core-mantle temperature drop | 200 K |
Qm | Initial mantle heat production | 23 pW kg-1 |
ρcr | Crust density | 2900 kg m-3 |
ρm | Mantle density | 3500 kg m-3 |
cm | Mantle heat capacity | 1100 J kg-1 K-3 |
cc | Core heat capacity | 800 J kg-1 K-3 |
A | Viscosity pre-factor | 6.127 × 1010 Pa s |
E∗ | Activation energy | 3.35 × 105 J mol-1 |
V∗ | Activation volume | 4 × 10-6 m3 mol-1 |
k cr | Crust thermal conductivity | 3 W m-1 K-1 |
km | Mantle thermal conductivity | 4 W m-1 K-1 |
κm | Mantle thermal diffusivity | 10-6 m s-2 |
αm | Mantle thermal expansivity | 2 × 10-5 K-1 |
ℒ | Latent heat of melting | 6 × 105 J kg-1 |
R acrit | Critical Rayleigh number | 450 |
u0 | Convection velocity scale | 2 × 10-12 m s-1 |
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