activity
20062026
most citedMagnetism, rotation, and nonthermal emission in cool stars -- Average magnetic field measurements in 292 M dwarfs

177 citations · 2.4k across the 68 of their papers we have counts for

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Showing 2014Show all

5 papers · 1 filter

astro-ph.SR2014★ 2 cited

Dynamical quenching with non-local alpha and downward pumping

A. Brandenburg, A. Hubbard, P. J. Käpylä

In light of new results, the one-dimensional mean-field dynamo model of Brandenburg & Kapyla (2007) with dynamical quenching and a nonlocal Babcock-Leighton alpha effect is re-exam…

astro-ph.SR2014★ 63 cited

On the cause of solar-like equatorward migration in global convective dynamo simulations

Jörn Warnecke, Petri J. Käpylä, Maarit J. Käpylä +1

We present results from four convectively-driven stellar dynamo simulations in spherical wedge geometry. All of these simulations produce cyclic and migrating mean magnetic fields.…

astro-ph.SR2014★ 102 cited

Magnetically controlled stellar differential rotation near the transition from solar to anti-solar profiles

Bidya Binay Karak, Petri J. Kapyla, Maarit J. Kapyla +3

Late-type stars rotate differentially owing to anisotropic turbulence in their outer convection zones. The rotation is called solar-like (SL) when the equator rotates fastest and a…

astro-ph.SR2014★ 42 cited

Quenching and anisotropy of hydromagnetic turbulent transport

Bidya Binay Karak, Matthias Rheinhardt, Axel Brandenburg +2

Hydromagnetic turbulence affects the evolution of large-scale magnetic fields through mean-field effects like turbulent diffusion and the effect. For stronger fields, these eff…

astro-ph.SR2014★ 89 cited

Confirmation of bistable stellar differential rotation profiles

P. J. Käpylä, M. J. Käpylä, A. Brandenburg

(abridged) Context: Solar-like differential rotation is characterized by a rapidly rotating equator and slower poles. However, theoretical models and numerical simulations can resu…