Results 11 to 20 of about 104,383 (339)

Fluid Dynamics Experiments for Planetary Interiors [PDF]

Surveys in Geophysics, 2022
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
Michaël Le Bars, Ankit Barik, Fabian Burmann, Daniel P. Lathrop, Jérõme Noir, Nathanaël Schaeffer, S. A. Triana   +6 more
openalex   +5 more sources

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 ...
Helled, Ravit, Werner, Stephanie, Dorn, Caroline, Guillot, Tristan, Ikoma, Masahiro, Ito, Yuichi, Kama, Mihkel, Lichtenberg, Tim, Miguel, Yamila, Shorttle, Oliver, Tackley, Paul J, Valencia, Diana, Vazan, Allona   +12 more
openaire   +9 more sources

Tidally-forced turbulence in planetary interiors [PDF]

Geophysical Journal International, 2016
The turbulence generated in the liquid metal cores and subsurface oceans of planetary bodies may be due to the role of mechanical forcing through precession/nutation, libration, tidal forcing and collisions. Here, we model the response of an enclosed constant density fluid to tidal forcing by combining laboratory equatorial velocity measurements with ...
A. Grannan, Benjamin Favier, Michaël Le Bars, J. M. Aurnou   +3 more
openalex   +6 more sources

Dynamical Measurements of the Interior Structure of Exoplanets [PDF]

, 2013
Giant gaseous planets often reside on orbits in sufficient proximity to their host stars for the planetary quadrupole gravitational field to become non-negligible. In presence of an additional planetary companion, a precise characterization of the system'
Batygin, Konstantin, Becker, Juliette C.
core   +3 more sources

The Effects of Rotation Rate on Deep Convection in Giant Planets with Small Solid Cores [PDF]

, 2006
We study how the pattern of thermal convection and differential rotation in the interior of a giant gaseous planet is affected by the presence of a small solid core as a function of the planetary rotation rate.
Aurnou, Boss, Candrasekhar, Christensen, Evonuk, Evonuk, Gary A. Glatzmaier, Glatzmaier, Guillot, Guillot, Guillot, Kuhlen, Martha Evonuk, Pollack, Stevenson, Sun   +15 more
core   +2 more sources

Planetary Interior in the Laboratory [PDF]

, 2003
In the three years of this project, we have provided a complete database of the electrical conductivity of planetary materials to 180 GPa. The electrical conductivities of these planetary materials now provide a basis for future modeling of planets taking into account full magnetohydrodynamics.
R Chau, Marina Bastea, A. C. Mitchell, R W Minich, W. J. Nellis   +4 more
openalex   +4 more sources

A High-pressure Filled Ice in the H2O–CO2–CH4 System, with Possible Consequences for the CO2–CH4 Biosignature Pair

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
doaj   +1 more source

Evolution of a Water-rich Atmosphere Formed by a Giant Impact on an Earth-sized Planet

The Astrophysical Journal, 2023
The atmosphere of a terrestrial planet that is replenished with secondary gases should have accumulated hydrogen-rich gas from its protoplanetary disk.
Kenji Kurosaki, Yasunori Hori, Masahiro Ogihara, Masanobu Kunitomo   +3 more
doaj   +1 more source

Bayesian analysis of interiors of HD 219134b, Kepler-10b, Kepler-93b, CoRoT-7b, 55 Cnc e, and HD 97658b using stellar abundance proxies [PDF]

, 2016
Using a generalized Bayesian inference method, we aim to explore the possible interior structures of six selected exoplanets for which planetary mass and radius measurements are available in addition to stellar host abundances: HD~219134b, Kepler-10b ...
Dorn, C., Hinkel, N. R., Venturini, J.
core   +2 more sources

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
openaire   +2 more sources