604 citations · 12.7k across the 343 of their papers we have counts for
14 papers · 1 filter
The problem of small and large scale fields in the solar dynamo
A. Brandenburg, N. E. L. Haugen, P. J. Käpylä +1
Three closely related stumbling blocks of solar mean field dynamo theory are discussed: how dominant are the small scale fields, how is the alpha effect quenched, and whether magne…
Shearing and embedding box simulations of the magnetorotational instability
A. Brandenburg, B. Dintrans, N. E. L. Haugen
Two different computational approaches to the magnetorotational instability (MRI) are pursued: the shearing box approach which is suited for local simulations and the embedding box…
Factorisation, Parton Entanglement and the Drell-Yan Process
D. Boer, A. Brandenburg, O. Nachtmann +1
We discuss the angular distribution of the lepton pair in the Drell-Yan process, hadron+hadron -> γ^* X -> l^+ l^- X. This process gives information on the spin-density matrix ρ^{(…
Magnetic field generation in fully convective rotating spheres
W. Dobler, M. Stix, A. Brandenburg
Magnetohydrodynamic simulations of fully convective, rotating spheres with volume heating near the center and cooling at the surface are presented. The dynamo-generated magnetic fi…
Nonlinear current helicity fluxes in turbulent dynamos and alpha quenching
Kandaswamy Subramanian, Axel Brandenburg
Large scale dynamos produce small scale current helicity as a waste product that quenches the large scale dynamo process (alpha effect). This quenching can be catastrophic (i.e.int…
Helical coronal ejections and their role in the solar cycle
Axel Brandenburg, Christer Sandin, Petri J. Käpylä
The standard theory of the solar cycle in terms of an alpha-Omega dynamo hinges on a proper understanding of the nonlinear alpha effect. Boundary conditions play a surprisingly imp…