Influence of core-mantle boundary heat flows on the present and ancient dynamos of terrestrial planets

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I performed numerical experiments of self-consistent magnetohydrodynamic dynamos and magnetoconvection in rotating spherical shells. The implications are: (1) when solid inner cores did not start to grow, such as the ancient Earth and Mars, a smaller lateral heat-flux variation at the core-mantle boundaries (CMB) leads to boundary-induced structures and different field strengths. (2) The effect is much smaller for dynamos with an inner core being growing, e.g. the present Earth's core, and the impacts on the lateral variations at the inner core boundary (ICB) cannot be as large as a former study proposed. (3) The lateral phase relationship between CMB and ICB heterogeneities varies on the strengths of a background magnetic field and buoyancy. However, it becomes identical as convection is sufficiently vigorous, like in the present Earth's core.