95 citations · 253 across the 9 of their papers we have counts for
9 papers
Preliminary design of the INPE's Solar Vector Magnetograph
L. E. A. Vieira, A. L. Clúa de Gonzalez, A. Dal Lago +23
We describe the preliminary design of a magnetograph and visible-light imager instrument to study the solar dynamo processes through observations of the solar surface magnetic fiel…
Magnetic Flux Transport by turbulent reconnection in astrophysical flows
Elisabete M. de Gouveia Dal Pino, Márcia R. M. Leão, Reinaldo Santos-Lima +3
The role of MHD turbulence in astrophysical environments is still highly debated. An important question that permeates this debate is the transport of magnetic flux. This is partic…
Dynamo action and magnetic buoyancy in convection simulations with vertical shear
G. Guerrero, P. Käpylä
A hypothesis for sunspot formation is the buoyant emergence of magnetic flux tubes created by the strong radial shear at the tachocline. In this scenario, the magnetic field has to…
The role of diffusivity quenching in flux-transport dynamo models
G. A. Guerrero, M. Dikpati, E. M. de Gouveia Dal Pino
In the non-linear phase of a dynamo process, the back-reaction of the magnetic field upon the turbulent motion results in a decrease of the turbulence level and therefore in a supp…
Flux transport solar dynamo models, current problems and possible solutions
G. Guerrero, E. M. de Gouveia Dal Pino
The sunspot solar cycle has been usually explained as the result of a dynamo process operating in the sun. This is a classical problem in Astrophysics that until the present is not…
Turbulent magnetic pumping in a Babcock-Leighton solar dynamo model
G. Guerrero, E. M. de Gouveia Dal Pino
The turbulent pumping effect corresponds to the transport of magnetic flux due to the presence of density and turbulence gradients in convectively unstable layers. In the induction…