Solar Differential Rotation and Meridional Flow: The Role of a Subadiabatic Tachocline for the Taylor‐Proudman Balance

2005 ◽  
Vol 622 (2) ◽  
pp. 1320-1332 ◽  
Author(s):  
M. Rempel
Keyword(s):  
Differential Rotation ◽  
Meridional Flow ◽  
Solar Differential Rotation

scholarly journals Examples of Non-Thermal Motions as Seen on the Sun

1980 ◽  
Vol 51 ◽  
pp. 85-101
Author(s):  
Jacques M. Beckers
Keyword(s):  
Spectral Analysis ◽  
Differential Rotation ◽  
Giant Cells ◽  
Meridional Flow ◽  
Small Scale ◽  
Velocity Analysis ◽  
The Sun ◽  
Interior Structure ◽  
Solar Differential Rotation ◽  
Irradiance Spectrum

SummaryOn the sun we can identify many of the motions derived from stellar spectral analysis. A summary is given of the observed solar velocity phenomena. Many of these (e.g. meridional flow, giant cells, solar differential rotation, supergranulation) are of great interest in astrophysics especially for interior structure and chromospheric and coronal structuring but contribute virtually nothing to the velocities derived from a solar irradiance spectrum analysis. Others (granulation, very small scale motions and to a lesser extent, oscillations) do contribute substantially to the integrated sun velocity analysis. Some of the properties of these motion fields are described.

scholarly journals Generators of Solar Differential Rotation and Implications of Helioseismology

1990 ◽  
Vol 138 ◽  
pp. 315-320
Author(s):  
G. Rüdiger ◽  
I. Tuominen
Keyword(s):  
Angular Velocity ◽  
Orthogonal Polynomials ◽  
Turbulence Model ◽  
Differential Rotation ◽  
Heat Conductivity ◽  
Solar Rotation ◽  
Meridional Flow ◽  
Reynolds Stresses ◽  
Solar Differential Rotation ◽  
In Series

We interpret the helioseismological results for the solar rotation law as implying a uniform Ω0 in depth, if the angular velocity Ω(θ) is expanded in series of orthogonal polynomials. One of the possibilities to ensure uniformity of Ω0 is to exclude any anisotropy from the generating turbulence field, so that only the rotationally originated part of the heat conductivity tensor survive as a generator of meridional flow and consequently equatorial acceleration is produced. In addition to this simplest possible turbulence model, we discuss some possible forms of the nondiffusive parts of the Reynolds stresses which may be compatible with the uniformity of Ω0.

A model of solar differential rotation

Solar Physics ◽  
1991 ◽  
Vol 133 (2) ◽  
pp. 177-194
Author(s):  
L. L. Kichatinov
Keyword(s):  
Differential Rotation ◽  
Solar Differential Rotation

scholarly journals Measurements of Solar Differential Rotation Using the Century Long Kodaikanal Sunspot Data

Solar Physics ◽  
2021 ◽  
Vol 296 (1) ◽  
Author(s):  
Bibhuti Kumar Jha ◽  
Aditya Priyadarshi ◽  
Sudip Mandal ◽  
Subhamoy Chatterjee ◽  
Dipankar Banerjee
Keyword(s):  
Differential Rotation ◽  
Solar Differential Rotation ◽  
Sunspot Data

scholarly journals Instabilities of Uniformly Rotating Disks

1996 ◽  
Vol 169 ◽  
pp. 349-350 ◽  
Author(s):  
P. Vauterin ◽  
H. Dejonghe
Keyword(s):  
Distribution Function ◽  
Differential Rotation ◽  
Mass Concentration ◽  
Expansion Method ◽  
Rotating Disks ◽  
Central Mass ◽  
Reasonable Approximation ◽  
Central Regions ◽  
Series Expansion Method

We explore a series expansion method to calculate the instabilities and the structure of the perturbations for a variety of uniformly rotating finite stellar disks. This survey focuses on the role of the distribution function in stability analyses. Although the potential does not show differential rotation, it will in many cases be a reasonable approximation for the disk in the central regions of galaxies without massive central mass concentration.

scholarly journals The role of rotation in Luminous Blue Variables

1989 ◽  
Vol 113 ◽  
pp. 205-210
Author(s):  
S.R. Sreenivasan ◽  
W.J.F. Wilson
Keyword(s):  
Significant Role ◽  
Differential Rotation ◽  
Luminous Blue Variables

AbstractWe demonstrate that differential rotation plays a significant role in the essential features of LBV’s, among other types of objects.

CCD-Doppler measurements of solar differential rotation

Solar Physics ◽  
1996 ◽  
Vol 167 (1-2) ◽  
pp. 441-444 ◽  
Author(s):  
Axel D. Wittmann
Keyword(s):  
Differential Rotation ◽  
Solar Differential Rotation

scholarly journals Long-Term Variations of Solar Differential Rotation and Sunspot Activity: Revisited

Solar Physics ◽  
2013 ◽  
Vol 289 (3) ◽  
pp. 759-768 ◽  
Author(s):  
K. J. Li ◽  
W. Feng ◽  
X. J. Shi ◽  
J. L. Xie ◽  
P. X. Gao ◽  
...  
Keyword(s):  
Differential Rotation ◽  
Sunspot Activity ◽  
Solar Differential Rotation ◽  
Long Term Variations
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