The amplitude of Mercury's libration, as determined from Earth-based radar speckle pattern observations, suggests that only the mantle participates in the motion. This indicates a decoupling between the core and the mantle, and therefore that the outermost part of the core must be fluid. If a ...
E. Detection of the lunar body tide by the Lunar Orbiter Laser Altimeter. Geophys. Res. Lett. 41, 2282–2288 (2014). Article ADS PubMed PubMed Central Google Scholar Steinbrügge, G. et al. Viscoelastic tides of Mercury and the determination of its inner core size. J. Geophys. Res....
Mercury's spin axis has been shown to occupy the Cassini state 1 (Margot et al. 2007, 2012). In this equilibrium state, the orbit normal, the spin axis and the normal to the Laplace plane remain coplanar, precessing all together with a very long period of about 300000 years. The obliq...
Geodetic Evidence That Mercury Has A Solid Inner Core Geodetic analysis of radio tracking measurements of the MESSENGER spacecraft while in orbit about Mercury has yielded new estimates for the planet's gravit... A Genova,S Goossens,E Mazarico,... - 《Geophysical Research Letters》 被引量: 0...
of an inner core, as inferred from a revised interpretation of Apollo seismic data, suggest core crystallization as a viable process of magnetic field generation for a substantial period during lunar evolution. The present-day magnetic fields of Mercury and Ganymede (if they occur on the iron-...
Earth is the most hospitable to life. Mars may have supported life in the past, but there is no evidence that conditions have ever been life-friendly on Mercury or Venus. Each of the terrestrial planets has a central core made mostly of iron. The layer above the core is called the “ma...
The Fast Imaging Plasma Spectrometer (FIPS) on the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft has made the first in situ measurements of solar wind plasma in the inner heliosphere since the Helios 1 and 2 spacecraft in the 1980s. Although the core of...
The Fe-FeSi phase diagram at Mercury’s core conditions Article19 January 2022 Implications of the iron oxide phase transition on the interiors of rocky exoplanets Article Introduction Since Birch1reported the density deficit and velocity excess of the Earth’s outer core with respect to pure iron...
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Resistivity of solid and liquid Fe–Ni–Si with applications to the cores of Earth, Mercury and Venus Article Open access 15 June 2022 Introduction The Earth’s inner core contains iron (Fe) as the main component and approximately 5–10 weight percent (wt%) of nickel (Ni)1,2. However,...