Regular ArticleShape and Orientation of Mercury from Radar Ranging Data
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Liquidus determination of the Fe-S and (Fe, Ni)-S systems at 14 and 24 GPa: Implications for the Mercurian core
2022, Earth and Planetary Science LettersCitation Excerpt :The composition and structure of Mercury have been studied for decades. Ground observations revealed that Mercury has an average density of 5.427 g cm−3, which led to the inference that it possessed a large metallic core that makes up 68-85% of the planet's radius (Anderson et al., 1996; Riner et al., 2008). Mariner 10 was launched in 1973; upon passing Mercury, it detected a weak magnetic field.
A thin, dense crust for Mercury
2018, Earth and Planetary Science LettersCitation Excerpt :On Mercury, a number of estimates for crustal thickness have been proposed. Analysis of Earth-based radar imaging and gravity coefficients obtained from the Mariner 10 spacecraft implied a crust 100–300 km thick (Anderson et al., 1996). This range now seems implausible on the basis of Mercury's interior structure (Smith et al., 2012), and is likely too high because the analysis assumed Mercury's degree-2 topography is isostatically compensated.
The size, shape and orientation of the asteroid Vesta based on data from the Dawn mission
2017, Earth and Planetary Science LettersReference surfaces of the planet Mercury from MESSENGER
2016, IcarusCitation Excerpt :In the present study, the intention is to shed light on the parameters that size and shape the planet Mercury. However, in other works regarding the size and shape of Mercury, the mean radius (e.g., Oberst et al., 2011; Perry et al., 2011, 2015), the global shape model (GSM) in terms of the spherical harmonics (Neumann, 2014; Smith, 2015; Perry et al., 2015), the best-fitting ellipsoid parameters (Anderson et al., 1996; Elgner et al., 2014; Perry et al., 2015), the geoid and its potential value (Smith et al., 2012), the long-wavelength shape and its correlation with the geoid (Perry et al., 2015), and the equatorial shape (Anderson et al., 1996; Smith et al., 2010) have been studied. The geoid and the reference ellipsoid feature in applications regarding geodetic and geophysics.
Gravity and Topography of the Terrestrial Planets
2015, Treatise on Geophysics: Second EditionDynamics and Thermal History of the Terrestrial Planets, the Moon, and Io
2015, Treatise on Geophysics: Second Edition
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