000008181 001__ 8181
000008181 005__ 20260914120155.0
000008181 037__ $$aPOSTER-2026-0087
000008181 100__ $$aRivoldini, Attilio
000008181 245__ $$aMercury’s interior structure constrained from its thermal state and geodesy data
000008181 260__ $$c2026
000008181 269__ $$c2026-09-14
000008181 520__ $$aInterior structure inferences for Mercury based on geodetic data can be strongly affected by prior assumptions about the detailed thermal structure of the core. In particular, the presence of a conductive, thermally stratified layer in the upper core (CTSL) is often neglected, although it directly affects the core temperature profile and, consequently, inferences about core composition and inner-core radius. The upper CTSL is a key component of numerical dynamo simulations that can explain important features of Mercury’s magnetic field. Additional support for a CTSL also comes from thermal evolution studies that use constraints on dynamo activity in the core. In this study, we assess how assumptions about core composition, the present-day thermal state, and the CTSL affect Mercury’s annual libration amplitude, long-period libration, obliquity, and tidal Love numbers. To determine the present-day thermal state, we use results from whole-planet thermal evolution simulations that are consistent with assumptions about core composition and constrained by crustal thickness, radial contraction, and past and present dynamo activity.
000008181 536__ $$a3PRODPLANINT/$$c3PRODPLANINT/$$f3PRODPLANINT
000008181 594__ $$aNO
000008181 700__ $$aTosi, Nicola
000008181 700__ $$aLécaille, Manon
000008181 700__ $$aVan Hoolst, Tim
000008181 700__ $$aTrinh, Anthony
000008181 700__ $$aBaland, Rose-Marie
000008181 700__ $$aYseboodt, Marie
000008181 700__ $$aXiao, Haifeng
000008181 773__ $$tUnravelling the magnetic histories of Earth and other terrestrial objects, London, UK
000008181 8560_ $$fattilio.rivoldini@ksb-orb.be
000008181 8564_ $$s5507218$$uhttps://publi2-as.oma.be/record/8181/files/Rivoldini poster London.pdf
000008181 8564_ $$s22241$$uhttps://publi2-as.oma.be/record/8181/files/Rivoldini poster London.gif?subformat=icon$$xicon
000008181 8564_ $$s24816$$uhttps://publi2-as.oma.be/record/8181/files/Rivoldini poster London.jpg?subformat=icon-180$$xicon-180
000008181 980__ $$aCPOSTER