82 citations · 651 across the 38 of their papers we have counts for
7 papers · 1 filter
Theory of Solar Meridional Circulation at High Latitudes
Mausumi Dikpati, Peter A. Gilman
We build a hydrodynamical model for computing and understanding the Sun's large-scale high latitude flows, including Coriolis forces, turbulent diffusion of momentum and gyroscopic…
Nonlinear Evolution of Global Hydrodynamic Shallow-Water Instability in Solar Tachocline
Mausumi Dikpati
We present a fully nonlinear hydrodynamic 'shallow water' model of the solar tachocline. The model consists of a global spherical shell of differentially rotating fluid, which has…
Magnetic feature tracking, what determines the speed?
G. Guerrero, M. Rheinhardt, M. Dikpati
Recent observations revealed that small magnetic elements abundant at the solar surface move poleward with a velocity which seems to be lower than the plasma velocity . Guerre…
Plasma flow vs. magnetic feature-tracking speeds in the Sun
G. Guerrero, M. Rheinhardt, A. Brandenburg +1
We simulate the magnetic feature tracking (MFT) speed using advective-diffusive transport models in both one and two dimensions. By depositing magnetic bipolar regions at different…
Resonance in Forced Flux Transport Dynamos
Peter A. Gilman, Mausumi Dikpati
We show that simple 2 and 3-layer flux-transport dynamos, when forced at the top by a poloidal source term, can produce a widely varying amplitude of toroidal field at the bottom,…
Analysis of 3D MHD Instability of Antisolar Latitudinal Differential Rotation in F, G and K stars
Mausumi Dikpati, Paul S. Cally
Motivated by observations that only a very few stars have been found to have antisolar differential rotation, much weaker in amplitude than that of the Sun, we analyze the stabilit…