192 citations · 1.3k across the 41 of their papers we have counts for
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On the influence of magnetic helicity on X-rays emission of solar and stellar coronae
Jörn Warnecke, Hardi Peter
Observation of solar-like stars show a clear relation between X-ray emission and their rotation. Higher stellar rotation can lead to a larger magnetic helicity production in stars.…
Rotational dependence of turbulent transport coefficients in global convective dynamo simulations of solar-like stars
J. Warnecke, M. J. Käpylä
For moderate and slow rotation, magnetic activity of solar-like stars is observed to strongly depend on rotation. These observations do not yet have a solid explanation in terms of…
Data-driven model of the solar corona above an active region
Jörn Warnecke, Hardi Peter
We aim to reproduce the structure of the corona above a solar active region as seen in the extreme ultraviolet (EUV) using a three-dimensional magnetohydrodynamic (3D MHD) model. T…
Stellar dynamos in the transition regime: multiple dynamo modes and anti-solar differential rotation
M. Viviani, M. J. Käpylä, J. Warnecke +2
Global and semi-global convective dynamo simulations of solar-like stars are known to show a transition from an anti-solar (fast poles, slow equator) to solar-like (fast equator, s…