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5 papers · 2 filters
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…
Improvement of solar cycle prediction: Plateau of solar axial dipole moment
H. Iijima, H. Hotta, S. Imada +2
Aims. We report the small temporal variation of the axial dipole moment near the solar minimum and its application to the solar cycle prediction by the surface flux transport (SFT)…
Chromospheric polarimetry through multi-line observations of the 850 nm spectral region II: A magnetic flux tube scenario
C. Quintero Noda, Y. Kato, Y. Katsukawa +10
In this publication we continue the work started in Quintero Noda et al. (2017) examining this time a numerical simulation of a magnetic flux tube concentration. Our goal is to stu…
Spatial inhomogeneity of kinetic and magnetic dissipations in thermal convection
H. Hotta
We investigate the inhomogeneity of kinetic and magnetic dissipations in thermal convection using high-resolution calculations. In statistically steady turbulence, the injected and…
Solar overshoot region and small-scale dynamo with realistic energy flux
H. Hotta
We carry out high resolution calculations of the solar overshoot region with unprecedentedly realistic parameters, especially the small energy flux compared with ,…