72 citations · 272 across the 16 of their papers we have counts for
16 papers · 1 filter
Towards inertial-mode helioseismology: Direct sensing of solar rotation at 75 deg latitude and 0.8 Rsun
Prithwitosh Dey, Laurent Gizon, Yuto Bekki
Solar internal rotation at high latitudes is poorly constrained by acoustic-mode helioseismology. Global inertial modes observed on the Sun are highly sensitive to solar differenti…
Effects of the radiative interior on solar inertial modes
Suprabha Mukhopadhyay, Yuto Bekki, Xiaojue Zhu +1
Solar inertial modes are believed to play important diagnostic and dynamical roles in the Sun's differentially rotating convection zone. However, the coupling of these modes to the…
Impacts of small-scale dynamo on rotating columnar convection in stellar convection zones
Yuto Bekki
Understanding the complex interactions between convection, magnetic fields, and rotation is key to modeling the internal dynamics of the Sun and stars. Under rotational influence,…
Structure and Dynamics of the Sun's Interior Revealed by Helioseismic and Magnetic Imager
Alexander Kosovichev, Sarbani Basu, Yuto Bekki +43
High-resolution helioseismology observations with the Helioseismic and Magnetic Imager (HMI) onboard Solar Dynamics Observatory (SDO) provide a unique three-dimensional view of the…
Assessing the validity of the anelastic and Boussinesq approximations to model solar inertial modes
Suprabha Mukhopadhyay, Yuto Bekki, Xiaojue Zhu +1
Global-scale inertial modes of oscillations have been recently observed on the Sun. They might play an important dynamic and diagnostic role for the Sun. This work aims to assess t…
Solar Inertial Modes
Laurent Gizon, Yuto Bekki, Aaron C. Birch +5
The Sun's global inertial modes are very sensitive to the solar differential rotation and to properties of the deep solar convection zone which are currently poorly constrained. Th…
The Sun's differential rotation is controlled by high-latitude baroclinically unstable inertial modes
Yuto Bekki, Robert H. Cameron, Laurent Gizon
Rapidly rotating fluids have a rotation profile which depends only on the distance from the rotation axis, in accordance with the Taylor-Proudman theorem. Although the Sun was expe…
Numerical study of non-toroidal inertial modes with l=m+1 radial vorticity in the Sun's convection zone
Yuto Bekki
Various types of inertial modes have been observed and identified on the Sun, including the equatorial Rossby modes, critical-latitude modes, and high-latitude modes. Recent observ…
Dynamics of solar large-scale flows
Hideyuki Hotta, Yuto Bekki, Laurent Gizon +2
The Sun's axisymmetric large-scale flows, differential rotation and meridional circulation, are thought to be maintained by the influence of rotation on the thermal-convective moti…
Three-dimensional non-kinematic simulation of post-emergence evolution of bipolar magnetic regions and Babcock-Leighton dynamo of the Sun
Yuto Bekki, Robert H. Cameron
The Babcock-Leighton (BL) flux-transport model is a widely-accepted dynamo model of the Sun. This dynamo model has been extensively studied in a two-dimensional (2D) mean-field fra…
Theory of solar oscillations in the inertial frequency range: Amplitudes of equatorial modes from a nonlinear rotating convection simulation
Yuto Bekki, Robert H. Cameron, Laurent Gizon
Several types of inertial modes have been detected on the Sun. Properties of these inertial modes have been studied in the linear regime but have not been studied in nonlinear simu…
Theory of solar oscillations in the inertial frequency range: Linear modes of the convection zone
Yuto Bekki, Robert H. Cameron, Laurent Gizon
On the one hand, several types of global-scale inertial modes of oscillation have been observed on the Sun. They include the equatorial Rossby modes, critical-latitude modes, and h…
Solar inertial modes: Observations, identification, and diagnostic promise
Laurent Gizon, Robert H. Cameron, Yuto Bekki +10
The oscillations of a slowly rotating star have long been classified into spheroidal and toroidal modes. The spheroidal modes include the well-known 5-min acoustic modes used in he…
Consequences of high effective Prandtl number on solar differential rotation and convective velocity
Bidya Binay Karak, Mark Miesch, Yuto Bekki
Observations suggest that the large-scale convective velocities obtained by solar convection simulations might be over-estimated (convective conundrum). One plausible solution to t…
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…
Double-Cell Type Solar Meridional Circulation Based on Mean-Field Hydrodynamic Model
Yuto Bekki, Takaaki Yokoyama
The main object of the paper is to present the condition of the non-diffusive part of the Reynolds stress for driving the double-cell structure of the solar meridional circulation,…