Mercury: The Influence of the Heat Flow from the Interior on the Thermal Regime and Radio Emission of the Upper Cover

The effect of the heat flow from Mercury's interior on the thermal regime and radio emission of Mercury's upper cover was studied for various models of the upper cover structure. It was demonstrated that, in some models, the influence of the heat flow from the planet's interior is important, whereas, in other models, this effect is insignificant. For an inhomogeneous two-layer model of the upper cover structure in which a layer of a loose, unbound material rests on a sufficiently thick monolithic substrate, the heat flow from Mercury's interior is not the sole cause for the increase in temperature with depth. This temperature increase can also be explained by specific features of the upper layer structure.