47 citations · 273 across the 17 of their papers we have counts for
17 papers
Phase-curve approach to study atmospheric flows in hot Jupiters
D. Shulyak, W. Dietrich, V. Parmentier +5
Short-orbit gaseous exoplanets are the best targets to study atmospheric dynamics. A time series of emission observations collected at various photometric filters (phase curves) pr…
Flow Regimes in Hot Jupiter Atmospheres: Insights from Anelastic Models
W. Dietrich, J. Wicht
Hot Jupiters are Jupiter-sized exoplanets with close-in orbits, characterized by extreme day-night temperature contrasts due to synchronous rotation. These planets offer unique obs…
Westward hotspot offset explained by subcritical dynamo action in an ultra-hot Jupiter atmosphere
Vincent G. A. Böning, Wieland Dietrich, Johannes Wicht
Hot Jupiters are tidally-locked Jupiter-sized planets close to their host star. They have equilibrium temperatures above about 1000 K. Photometric observations find that the hotspo…
The Effects of a Stably Stratified Region with radially varying Electrical Conductivity on the Formation of Zonal Winds on Gas Planets
Paula N. Wulff, Ulrich R. Christensen, Wieland Dietrich +1
The outer areas of Jupiter and Saturn have multiple zonal winds, reaching the high latitudes, that penetrate deep into the planets' interiors, as suggested by gravity measurements.…
Direct driving of simulated planetary jets by upscale energy transfer
Vincent G. A. Böning, Paula Wulff, Wieland Dietrich +2
The precise mechanism that forms jets and large-scale vortices on the giant planets is unknown. An inverse cascade has been suggested. Alternatively, energy may be directly injecte…
Magnetic induction processes in Hot Jupiters, application to KELT-9b
Wieland Dietrich, Sandeep Kumar, Anna Julia Poser +4
The small semi-major axes of Hot Jupiters lead to high atmospheric temperatures of up to several thousand Kelvin. Under these conditions, thermally ionised metals provide a rich so…
Ionization and transport in partially ionized multicomponent plasmas: Application to atmospheres of hot Jupiters
Sandeep Kumar, Anna Julia Poser, Manuel Schöttler +5
We study ionization and transport processes in partially ionized multicomponent plasmas. The plasma composition is calculated via a system of coupled mass action laws. The electron…
Linking Zonal Winds and Gravity II: explaining the equatorially antisymmetric gravity moments of Jupiter
Wieland Dietrich, Paula Wulff, Johannes Wicht +1
The recent gravity field measurements of Jupiter (Juno) and Saturn (Cassini) confirm the existence of deep zonal flows reaching to a depth of 5\% and 15\% of the respective radius.…
Linking Zonal Winds and Gravity: The Relative Importance of Dynamic Self Gravity
Johannes Wicht, Wieland Dietrich, Paula Wulff +1
Recent precise measurements at Jupiter's and Saturn's gravity fields constrain the properties of the zonal flows in the outer envelopes of these planets. A simplified dynamic equat…
Dynamo Action of Jupiter's Zonal Winds
Johannes Wicht, Thomas Gastine, Lucia D. V. Duarte +1
The new data delivered by NASA's Juno spacecraft significantly increase our understanding of Jupiter's internal dynamics. The gravity data constrain the depth of the zonal flows ob…
Penetrative Convection in Partly Stratified Rapidly Rotating Spherical Shells
Wieland Dietrich, Johannes Wicht
Celestial objects host interfaces between convective and stable stratified interior regions. The interaction between both, e.g., the transfer of heat, mass, or angular momentum dep…
Anelastic spherical dynamos with radially variable electrical conductivity
Wieland Dietrich, Chris. A. Jones
A series of numerical simulations of the dynamo process operating inside gas giant planets has been performed. We use an anelastic, fully nonlinear, three-dimensional, benchmarked…
Reversal and amplification of zonal flows by boundary enforced thermal wind
Wieland Dietrich, Thomas Gastine, Johannes Wicht
Zonal flows in rapidly-rotating celestial objects such as the Sun, gas or ice giants form in a variety of surface patterns and amplitudes. Whereas the differential rotation on the…
Core flows and heat transfer induced by inhomogeneous cooling with sub- and supercritical convection
Wieland Dietrich, Kumiko Hori, Johannes Wicht
The amount and spatial pattern of heat extracted from cores of terrestrial planets is ultimately controlled by the thermal structure of the lower rocky mantle. Using the most commo…
Effect of width, amplitude, and position of a core mantle boundary hot spot on core convection and dynamo action
Wieland Dietrich, Johannes Wicht, Kumiko Hori
Within the fluid iron cores of terrestrial planets, convection and the resulting generation of global magnetic fields are controlled by the overlying rocky mantle. The thermal stru…
Hemispherical Parker waves driven by thermal shear in planetary dynamos
Wieland Dietrich, Dieter Schmitt, Johannes Wicht
Planetary and stellar magnetic fields are thought to be sustained by helical motions (-effect) and, if present, differential rotation (-effect). In the Sun, the strong differ…
A hemispherical dynamo model : Implications for the Martian crustal magnetization
Wieland Dietrich, Johannes Wicht
Mars Global Surveyor measurements revealed that the Martian crust is strongly magnetized in the southern hemisphere while the northern hemisphere is virtually void of magnetization…