Statistical hydromechanics of the solar differential rotation [PDF]
Proceedings of the National Academy of Sciences, 1982 An axisymmetric hydrodynamic model of the solar differential rotation is suggested that differs from the previous axisymmetric models (with arbitrarily given anisotropic viscosity) in the use of the hydrodynamic equations (the Friedmann-Keller equations) for the statistical second moments of the fluctuations of velocity and entropy—i.e., turbulent ...
Monin, Andrei S., Simuni, Lazar M.
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Effect of Magnetic Field Strength on Solar Differential Rotation and Meridional Circulation [PDF]
Astrophysical Journal, 2018 We studied the solar surface flows (differential rotation and meridional circulation) using a magnetic element feature tracking technique by which the surface velocity is obtained using magnetic field data. We used the line-of-sight magnetograms obtained
S. Imada, Masashi Fujiyama
semanticscholar +1 more source
Rotational Characteristics of the Solar Transition Region Using SDO/AIA 304 Å Images
The Astrophysical Journal, 2023 To date, the rotational characteristics of the solar transition region remain unclear. In this work, by applying the flux modulation method to the images derived from the Solar Dynamics Observatory/Atmospheric Imaging Assembly between 2011 and 2022 at ...
Qian-Rui Wu +6 more
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Measuring Solar Differential Rotation with an Iterative Phase Correlation Method
Astrophysical Journal Supplement Series, 2020 A reliable inference of the differential rotation rate of the solar photosphere is essential for models of the solar interior. The work presented here is based on a novel iterative phase correlation technique, which relies on the measurement of the local
Z. Hrazdíra, M. Druckmuller, S. Habbal
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Radial differential rotation of solar corona using radio emissions [PDF]
, 2021 The present work is an effort to investigate possible radial variations in the solar coronal rotation by analyzing the solar radio emission data at 15 different frequencies (275-1755 MHz) for the period starting from July 1994 to May 1999. We used a time
V. Singh +4 more
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Solar-cycle-related Variation of Differential Rotation of the Chromosphere
Astrophysical Journal, 2022 Solar-cycle-related variation of the solar chromospheric rotation is studied by analyzing the chromospheric rotation rate of 938 synoptic maps generated from the Ca ii K line at the Mount Wilson Observatory during the period of 1915 August 10 to 1985 ...
M. Wan, Peng-Xin Gao
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Solar differential rotation in the period 1964-2016 determined by the Kanzelhöhe data set [PDF]
, 2017 The main aim of this work is to determine the solar differential rotation by tracing sunspot groups during the period 1964-2016, using the Kanzelhohe Observatory for Solar and Environmental Research (KSO) sunspot drawings and white light images.
I. P. Beljan +10 more
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Grand Minima in a spherical non-kinematic α2Ω mean-field dynamo model
Journal of Space Weather and Space Climate, 2020 We present a non-kinematic axisymetric α2Ω mean-field dynamo model in which the complete α-tensor and mean differential rotation profile are both extracted from a global magnetohydrodynamical simulation of solar convection producing cycling large-scale ...
Simard Corinne, Charbonneau Paul
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Measurements of Solar Differential Rotation and Meridional Circulation from Tracking of Photospheric Magnetic Features [PDF]
, 2017 Long-lived rotational and meridional flows are important ingredients of the solar cycle. Magnetic field images have typically been used to measure these flows on the solar surface by cross-correlating thin longitudinal strips or square patches across ...
D. Lamb
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Effect of latitudinal differential rotation on solar Rossby waves: Critical layers, eigenfunctions, and momentum fluxes in the equatorial β plane [PDF]
Astronomy & Astrophysics, 2020 Context. Retrograde-propagating waves of vertical vorticity with longitudinal wavenumbers between 3 and 15 have been observed on the Sun with a dispersion relation close to that of classical sectoral Rossby waves.
L. Gizon, D. Fournier, M. Albekioni
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