Results 51 to 60 of about 240,920 (191)
The Astrophysical JournalA primary goal of characterizing exoplanet atmospheres is to constrain planetary bulk properties, such as their metallicity, C/O ratio, and intrinsic heat.
Sagnick Mukherjee +4 more
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Undergraduate Journal of Mathematical Modeling: One + Two, 2019 This paper examines the interior structure and composition of Earth, Jupiter, and Neptune by using moment of inertia (MoI) and observable planetary features to create approximate two-layer interior structure models. The moment inertia of a uniform sphere,
Selena Kimball
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Interiors and atmospheres of the outer planets [PDF]
, 1991 This theoretical/observational project constrains structure of outer planet atmospheres and interiors through observational data. The primary observation tool is through observations of occultations of stars by outer solar system objects, which yield ...
Hubbard, W. B.
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Reports of planetary geology program, 1976 - 1977 [PDF]
, 1977 One hundred seventeen investigations undertaken in the NASA Planetary Geology Program in 1976-1977 are reported in abstract form. Topics discussed include solar system formation; planetary interiors; planetary evolution; asteroids, comets and moons ...
Howard, J. H., III +2 more
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Planetary magnetism: Unlocking the secrets of planetary interiors [PDF]
AIP Conference Proceedings, 2015 Many planetary bodies in our solar system have magnetic fields that we can observe with spacecraft instruments. These magnetic fields are generated deep in planetary interiors by complex motions in liquid conductors. Because these magnetic fields are observable outside of the planet, they can act as important probes of planetary interiors. In this talk
openaire +1 more source
First-principles Simulations of Minerals in Earth and Planetary Interiors [PDF]
, 2016 In the deep interiors of planets, the pressures and the temperatures are significantly higher than at ambient condition. The interplay between compression and thermal expansion leads to complexity in the chemistry and physical properties of minerals ...
Zhang, Shuai
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Depletion of potassium and sodium in mantles of Mars, Moon and Vesta by core formation
Scientific Reports, 2018 The depletions of potassium (K) and sodium (Na) in samples from planetary interiors have long been considered as primary evidence for their volatile behavior during planetary formation processes. Here, we use high-pressure experiments combined with laser
E. S. Steenstra +5 more
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Full-waveform inversion reveals diverse origins of lower mantle positive wave speed anomalies
Scientific ReportsDetermining Earth’s structure is paramount to unravel its interior dynamics. Seismic tomography reveals positive wave speed anomalies throughout the mantle that spatially correlate with the expected locations of subducted slabs. This correlation has been
Thomas L. A. Schouten +6 more
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Understanding tidal dissipation in gaseous giant planets from their core to their surface
EPJ Web of Conferences, 2015 Tidal dissipation in planetary interiors is one of the key physical mechanisms that drive the evolution of star-planet and planet-moon systems. Tidal dissipation in planets is intrinsically related to their internal structure.
Guenel M., Mathis S., Remus F.
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Planetary Science Informatics and Data Analytics Conference : April 24–26, 2018, St. Louis, Missouri [PDF]
, 2018 The PSIDA conference provides a forum to discuss approaches, challenges, and applications of informatics and data analytics technologies and capabilities in planetary science.Institutional Support NASA Planetary Data System Geosciences, Lunar and ...
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