A. Brandenburg

Publications678
h-index57
Citations15,469
Highly Influential Citations809
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Astrophysical magnetic field and nonlinear dynamo theory
The invention concerns a new process for the production of 2-alkoxy-4-propen-1-yl phenols of the formula (I), in which R represents the methyl or ethyl radical wherein 2-alkoxy phenols of the formula… Expand
Dynamo-generated Turbulence and Large-Scale Magnetic Fields in a Keplerian Shear Flow
The nonlinear evolution of magnetized Keplerian shear ows is simulated in a local, three-dimensional model, including the eeects of compressibility and stratiication. Supersonic ows are initially… Expand
TIME EVOLUTION OF THE MAGNETIC ACTIVITY CYCLE PERIOD. II. RESULTS FOR AN EXPANDED STELLAR SAMPLE
We further explore nondimensional relationships between the magnetic dynamo cycle period Pcyc, the rotational period Prot, the activity level (as observed in Ca II HK), and other stellar properties… Expand
The inverse cascade and nonlinear alpha-effect in simulations of isotropic helical hydromagnetic turbulence
A numerical model of isotropic homogeneous turbulence with helical forcing is investigated. The resulting flow, which is essentially the prototype of the α2 dynamo of mean field dynamo theory,… Expand
Galactic Magnetism: Recent developments and perspectives
▪ Abstract We discuss current observational and theoretical knowledge of magnetic fields, especially the large-scale structure in the disks and halos of spiral galaxies. Among other topics, we… Expand
Simulations of nonhelical hydromagnetic turbulence.
TLDR
The bottleneck effect is shown to be equally strong both for magnetic and nonmagnetic turbulence, but it is far weaker in one-dimensional spectra that are normally studied in laboratory turbulence. Expand
A supernova-regulated interstellar medium: Simulations of the turbulent multiphase medium
The dynamic state of the interstellar medium, heated and stirred by supernovae (SNe), is simulated using a three-dimensional, nonideal MHD model in a domain extended 0.5×0.5 kpc horizontally and 2… Expand
Minimal tau approximation and simulations of the alpha effect
The validity of a closure called the minimal tau approximation (MTA), is tested in the context of dynamo theory, wherein triple correlations are assumed to provide relaxat ion of the turbulent… Expand
MAGNETIC DIFFUSIVITY TENSOR AND DYNAMO EFFECTS IN ROTATING AND SHEARING TURBULENCE
The turbulent magnetic diffusivity tensor is determined in the presence of rotation or shear. The question is addressed whether dynamo action from the shear-current effect can explain large-scale… Expand
The case for a distributed solar dynamo shaped by near-surface shear
Arguments for and against the widely accepted picture of a solar dynamo being seated in the tachocline are reviewed, and alternative ideas concerning dynamos operating in the bulk of the convection… Expand
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