98 citations · 250 across the 7 of their papers we have counts for
7 papers
Genetic Algorithm for Inferring Model Parameters for Flux Transport Dynamo Simulation
Yuya Shimizu, Hideyuki Hotta
The Sun exhibits an 11-year cyclic variation, maintained by dynamo action in the solar interior. Mean-field flux transport dynamo models have successfully reproduced most of the fe…
Simultaneous construction of fast equator, poleward meridional flow, and near-surface shear layer in solar magnetohydrodynamic calculation
H. Hotta
We carry out an unprecedented high-resolution simulation for the solar convection zone. Our calculation reproduces the fast equator and near-surface shear layer (NSSL) of different…
Convective velocity suppression via the enhancement of subadiabatic layer: Role of the effective Prandtl number
Y. Bekki, H. Hotta, T. Yokoyama
It has recently been recognized that the convective velocities achieved in the current solar convection simulations might be over-estimated. The newly-revealed effects of the preva…
Efficient small-scale dynamo in solar convection zone
H. Hotta, M. Rempel, T. Yokoyama
We investigate small-scale dynamo action in the solar convection zone through a series of high resolution MHD simulations in a local Cartesian domain with 1 (solar radius)…
High-resolution calculation of the solar global convection with the reduced speed of sound technique: II. Near surface shear layer with the rotation
H. Hotta, M. Rempel, T. Yokoyama
We present a high-resolution, highly stratified numerical simulation of rotating thermal convection in a spherical shell. Our aim is to study in detail the processes that can maint…
Generation of twist on magnetic flux tubes at the base of the solar convection zone
H. Hotta, T. Yokoyama
Using two-dimensional magnetohydrodynamics calculations, we investigate a twist gen- eration mechanism on a magnetic flux tube at the base of the solar convection zone based on the…
Modeling of differential rotation in rapidly rotating solar-type stars
Hideyuki Hotta, Takaaki Yokoyama
We investigate differential rotation in rapidly rotating solar-type stars by means of an axisymmetric mean field model that was previously applied to the sun. This allows us to cal…