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Three-Dimensional Simulations of Solar and Stellar Dynamos: The Influence of a Tachocline
M. S. Miesch, M. K. Browning, A. S. Brun +2
We review recent advances in modeling global-scale convection and dynamo processes with the Anelastic Spherical Harmonic (ASH) code. In particular, we have recently achieved the fi…
Rapidly Rotating Suns and Active Nests of Convection
Benjamin P. Brown, Matthew K. Browning, Allan Sacha Brun +2
In the solar convection zone, rotation couples with intensely turbulent convection to drive a strong differential rotation and achieve complex magnetic dynamo action. Our sun must…
Structure and Evolution of Giant Cells in Global Models of Solar Convection
Mark S. Miesch, Allan Sacha Brun, Marc L. Derosa +1
The global scales of solar convection are studied through three-dimensional simulations of compressible convection carried out in spherical shells of rotating fluid which extend fr…
Global-Scale Turbulent Convection and Magnetic Dynamo Action in the Solar Envelope
Allan Sacha Brun, Mark S. Miesch, Juri Toomre
The operation of the solar global dynamo appears to involve many dynamical elements. Self-consistent MHD simulations which realistically incorporate all of these processes are not…
Simulations of core convection in rotating A-type stars: Magnetic dynamo action
Allan Sacha Brun, Matthew K. Browning, Juri Toomre
Core convection and dynamo activity deep within rotating A-type stars of 2 solar masses are studied with 3--D nonlinear simulations. Our modeling considers the inner 30% by radius…
Dynamo Action in the Solar Convection Zone and Tachocline: Pumping and Organization of Toroidal Fields
Matthew Browning, Mark S. Miesch, Allan Sacha Brun +1
We present the first results from three-dimensional spherical shell simulations of magnetic dynamo action realized by turbulent convection penetrating downward into a tachocline of…