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Showing 1 to 6 of 6 for “"Tachocline"”.
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Formation and stability of the solar tachocline in MHD simulations
The solar tachocline is a thin transition layer between the solar radiative zone rotating uniformly and the solar convection zone, which has a mainly latitudinal differential rotation profile. This layer has a thickness of less than $0.05R_{\sun}$ and is subject to extreme radial as well as …
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The solar tachocline: a self-consistent model of magnetic confinement
… and magnetic field confinement within the tachocline. In Part I we review current knowledge of the Sun's rotation. We summarise the main mechanisms by which angular momentum is transported within the Sun, and discuss the difficulties in reconciling the observed uniform rotation of the …
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Shear instabilities in stellar objects: linear stability and non-linear evolution
… the base of the convection zone in the Sun, the tachocline, is believed to play an important role in the Sun's interior dynamics and magnetic field generation. Velocity measurements suggest a stable tachocline. However, helioseismology can only provide large-scale time-averaged measurements, so …
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Robotic telescopes & Doppler imaging : measuring differential rotation on long-period active stars
… am Boden der Konvektionszone in der sogenannten Tachocline befindet. Angetrieben wird der Dynamo teils von der differenziellen Rotation, teils von den magnetischen Turbulenzen in der Konvektionszone. Die differentielle Rotation kann an der Sonnenoberfläche durch beobachten der …
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Pattern Formation in Rotating Fluid Systems under the Influence of Magnetic Fields
… boundary of the Earth's liquid core or at the tachocline in the Sun below the convection zone for a few decades. To analyze the forementioned problems, various codes and computational tools had to be developed, for instance, we were able to describe complex spatio-temporal patterns by the …
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Shear flow instabilities in stratified magnetohydrodynamics
… stably-stratified region in the Sun known as the tachocline, wherein the turbulent dynamics are believed to be driven by shear flow instabilities. In this thesis we investigate how stable stratification and magnetic fields affect instabilities of a Kolmogorov shear flow in different parameter …