INTERIOR OF MARS FROM NONRIGID NUTATIONS

摘要

The interior of Mars is presently not well constrained by observational data. Especially information on the core is difficult to obtain. The NEIGE experiment of the Netlander mission is an experiment that allows to derive direct information on the core of Mars. A brief description of this experiment is given. It is in particular shown that the measurement of nutations of Mars yields information on the planet's core. The state of the core (liquid or solid) can be derived and the density and radius of the core can be better constrained. Also, information on the possible existence of a solid inner core can be derived from the NEIGE experiment.