45 citations · 164 across the 7 of their papers we have counts for
3 papers · 1 filter
Magnetic flux concentrations from turbulent stratified convection
P. J. Käpylä, A. Brandenburg, N. Kleeorin +2
(abridged) Context: The mechanisms that cause the formation of sunspots are still unclear. Aims: We study the self-organisation of initially uniform sub-equipartition magnetic fiel…
Spontaneous formation of flux concentrations in a stratified layer
Koen Kemel, Axel Brandenburg, Nathan Kleeorin +2
The negative effective magnetic pressure instability discovered recently in direct numerical simulations (DNS) may play a crucial role in the formation of sunspots and active regio…
Negative effective magnetic pressure in turbulent convection
P. J. Käpylä, A. Brandenburg, N. Kleeorin +2
We investigate the effects of weakly and strongly stratified turbulent convection on the mean effective Lorentz force, and especially on the mean effective magnetic pressure. Earli…