Results 1 to 10 of about 4,760 (163)
Ariel planetary interiors White Paper [PDF]
Experimental Astronomy, 2021 AbstractThe recently adopted Ariel ESA mission will measure the atmospheric composition of a large number of exoplanets. This information will then be used to better constrain planetary bulk compositions. While the connection between the composition of a planetary atmosphere and the bulk interior is still being investigated, the combination of the ...
Ravit Helled +2 more
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The Astrophysical Journal Supplement Series, 2023 Characterizing the interiors of rocky exoplanets is important to understand planetary populations and further investigate planetary habitability. New observable constraints and inference techniques have been explored for this purpose.
Yong Zhao, Dongdong Ni, Zibo Liu
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A Reanalysis of the Composition of K2-106b: An Ultra-short-period Super-Mercury Candidate
The Astronomical Journal, 2023 We present a reanalysis of the K2-106 transiting planetary system, with a focus on the composition of K2-106b, an ultra-short-period, super-Mercury candidate. We globally model existing photometric and radial velocity data and derive a planetary mass and
Romy Rodríguez Martínez +11 more
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Relation of Gravity, Winds, and the Moment of Inertia of Jupiter and Saturn
The Planetary Science Journal, 2023 We study the relationship of zonal gravity coefficients, J _2 _n , zonal winds, and axial moment of inertia (MoI) by constructing models for the interiors of giant planets.
Burkhard Militzer, William B. Hubbard
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The Astrophysical Journal, 2023 Jupiter’s atmosphere interior is a coupled fluid dynamical system strongly influenced by the rapid background rotation. While the visible atmosphere features east–west zonal winds on the order of ∼100 m s ^−1 , zonal flows in the dynamo region are ...
Hao Cao +7 more
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Magnesium oxide-water compounds at megabar pressure and implications on planetary interiors
Nature Communications, 2023 Magnesium Oxide and water are abundant in the interior of planets. Here, the authors predict three new MgO-H2O compounds: Mg2O3H2, MgO3H4 and MgO4H6, and they exhibit superionic behavior in planetary interior conditions.
Shuning Pan +9 more
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VARIATIONAL PRINCIPLE FOR PLANETARY INTERIORS [PDF]
The Astrophysical Journal, 2016 ABSTRACT In the past few years, the number of confirmed planets has grown above 2000. It is clear that they represent a diversity of structures not seen in our own solar system. In addition to very detailed interior modeling, it is valuable to have a simple analytical framework for describing planetary structures.
Li Zeng, Stein B. Jacobsen
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The Planetary Science Journal, 2023 Clathrate hydrates may represent a sizable fraction of material within the icy shells of Kuiper Belt objects and icy moons. They influence the chemical and thermal evolution of subsurface oceans by locking volatiles into the ice shell and by providing ...
Samuel W. Courville +5 more
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Fluid Dynamics Experiments for Planetary Interiors [PDF]
Surveys in Geophysics, 2021 AbstractUnderstanding fluid flows in planetary cores and subsurface oceans, as well as their signatures in available observational data (gravity, magnetism, rotation, etc.), is a tremendous interdisciplinary challenge. In particular, it requires understanding the fundamental fluid dynamics involving turbulence and rotation at typical scales well beyond
Le Bars, Michael +6 more
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The Astrophysical Journal, 2023 Here we constrain the speciation of carbon that may outgas in ocean exoplanets. Ocean exoplanets likely have at least a few percent by mass of water, which is sufficient to build a high-pressure ice layer between a rocky interior and the outer ...
A. Levi, A. Bansal, D. Sasselov
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