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- Centre National de la Recherche ScientifiqueFR72 papers
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5 papers · 1 filter
A systematic bias in the calculation of spectral density from a 3D spatial grid
Rodion Stepanov, Franck Plunian, Mouloud Kessar +1
The energy spectral density , where is the spatial wave number, is a well-known diagnostic of homogeneous turbulence and magnetohydrodynamic turbulence. However in most o…
The BinaMIcS project: understanding the origin of magnetic fields in massive stars through close binary systems
E. Alecian, C. Neiner, G. A. Wade +11
It is now well established that a fraction of the massive (M>8 Msun) star population hosts strong, organised magnetic fields, most likely of fossil origin. The details of the gener…
Magnetic induction and diffusion mechanisms in a liquid sodium spherical Couette experiment
Simon Cabanes, Nathanaël Schaeffer, Henri-Claude Nataf
We present a reconstruction of the mean axisymmetric azimuthal and meridional flows in the DTS liquid sodium experiment. The experimental device sets a spherical Couette flow enclo…
Tidally driven dynamos in a rotating sphere
David Cébron, Rainer Hollerbach
Large-scale planetary or stellar magnetic fields generated by a dynamo effect are mostly attributed to flows forced by buoyancy forces in electrically conducting fluid layers. Howe…
Variability modes in core flows inverted from geomagnetic field models
Alexandra Pais, Anna Morozova, Nathanaël Schaeffer
The flow of liquid metal inside the Earth's core produces the geomagnetic field and its time variations. Understanding the variability of those deep currents is crucial to improve…