Dynamics of large-scale solar flows

H Hotta, Y Bekki, L Gizon, Q Noraz, M Rast - Space Science Reviews, 2023 - Springer
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 motions in …

Dynamics of the Tachocline

A Strugarek, B Belucz, AS Brun, M Dikpati… - Space Science …, 2023 - Springer
The solar tachocline is an internal region of the Sun possessing strong radial and latitudinal
shears straddling the base of the convective envelope. Based on helioseismic inversions …

Theory of solar oscillations in the inertial frequency range: Amplitudes of equatorial modes from a nonlinear rotating convection simulation

Y Bekki, RH Cameron, L Gizon - Astronomy & Astrophysics, 2022 - aanda.org
Context. 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 …

The Sun's differential rotation is controlled by high-latitude baroclinically unstable inertial modes

Y Bekki, RH Cameron, L Gizon - Science Advances, 2024 - science.org
Rapidly rotating fluids have a rotation profile that depends only on the distance from the
rotation axis, in accordance with the Taylor-Proudman theorem. Although the Sun was …

Three-dimensional non-kinematic simulation of the post-emergence evolution of bipolar magnetic regions and the Babcock-Leighton dynamo of the Sun

Y Bekki, RH Cameron - Astronomy & Astrophysics, 2023 - aanda.org
Context. The Babcock-Leighton flux-transport model is a widely accepted dynamo model of
the Sun that can explain many observational aspects of solar magnetic activity. This dynamo …

Identification of inertial modes in the solar convection zone

SA Triana, G Guerrero, A Barik… - The Astrophysical …, 2022 - iopscience.iop.org
The observation of global acoustic waves (p modes) in the Sun has been key to unveiling its
internal structure and dynamics. A different kind of wave, known as sectoral Rossby modes …

Interaction of solar inertial modes with turbulent convection-A 2D model for the excitation of linearly stable modes

J Philidet, L Gizon - Astronomy & Astrophysics, 2023 - aanda.org
Context. Inertial modes have been observed on the Sun at low longitudinal wavenumbers.
These modes probe the dynamics and structure of the solar convective zone down to the …

Numerical study of non-toroidal inertial modes with l= m+ 1 radial vorticity in the Sun's convection zone

Y Bekki - Astronomy & Astrophysics, 2024 - aanda.org
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 …

Observed power and frequency variations of solar rossby waves with solar cycles

M Waidele, J Zhao - The Astrophysical Journal Letters, 2023 - iopscience.iop.org
Several recent studies utilizing different helioseismic methods have confirmed the presence
of large-scale vorticity waves known as solar Rossby waves within the Sun. Rossby waves …

A spectral solver for solar inertial waves

J Bhattacharya, SM Hanasoge - The Astrophysical Journal …, 2023 - iopscience.iop.org
Inertial waves, which are predominantly driven by the Coriolis force, likely play an important
role in solar dynamics, and, additionally, they provide a window into the solar subsurface …