Sustaining Earth's magnetic dynamo
Earth's magnetic field is generated by fluid motions in the outer core. This geodynamo has
operated for over 3.4 billion years. However, the mechanism that has sustained the …
operated for over 3.4 billion years. However, the mechanism that has sustained the …
Probing space to understand Earth
Progress in the geosciences has often followed the same fundamental paradigm for about
two centuries: Earth's present is the key to understanding its past and its future. This concept …
two centuries: Earth's present is the key to understanding its past and its future. This concept …
Multidisciplinary constraints on the thermal‐chemical boundary between Earth's core and mantle
Heat flux from the core to the mantle provides driving energy for mantle convection thus
powering plate tectonics, and contributes a significant fraction of the geothermal heat …
powering plate tectonics, and contributes a significant fraction of the geothermal heat …
Turbulent viscosity acting on the equilibrium tidal flow in convective stars
Convection is thought to act as a turbulent viscosity in damping tidal flows and in driving spin
and orbital evolution in close convective binary systems. This turbulent viscosity should be …
and orbital evolution in close convective binary systems. This turbulent viscosity should be …
Precession-driven flows in stress-free ellipsoids
Motivated by modelling rotating turbulence in planetary fluid layers, we investigate
precession-driven flows in ellipsoids subject to stress-free boundary conditions (SF-BC). The …
precession-driven flows in ellipsoids subject to stress-free boundary conditions (SF-BC). The …
Experimental study of the nonlinear saturation of the elliptical instability: inertial wave turbulence versus geostrophic turbulence
In this paper, we present an experimental investigation of the turbulent saturation of the flow
driven by the parametric resonance of inertial waves in a rotating fluid. In our set-up, a half …
driven by the parametric resonance of inertial waves in a rotating fluid. In our set-up, a half …
Core eigenmodes and their impact on the Earth's rotation
Abstract Changes in the Earth's rotation are deeply connected to fluid dynamical processes
in the outer core. This connection can be explored by studying the associated Earth …
in the outer core. This connection can be explored by studying the associated Earth …
Fluid dynamics experiments for planetary interiors
Understanding fluid flows in planetary cores and subsurface oceans, as well as their
signatures in available observational data (gravity, magnetism, rotation, etc.), is a …
signatures in available observational data (gravity, magnetism, rotation, etc.), is a …
The thermal evolution of planetesimals during accretion and differentiation: Consequences for dynamo generation by thermally‐driven convection
The meteorite paleomagnetic record indicates that differentiated (and potentially, partially
differentiated) planetesimals generated dynamo fields in the first 5–40 Myr after the …
differentiated) planetesimals generated dynamo fields in the first 5–40 Myr after the …
Fossil field decay due to nonlinear tides in massive binaries
Context. Surface magnetic fields have been detected in 5–10% of isolated massive stars,
hosting outer radiative envelopes. They are often thought to have a fossil origin, resulting …
hosting outer radiative envelopes. They are often thought to have a fossil origin, resulting …