Results 61 to 70 of about 3,457 (163)

A Multilayer Magnetohydrodynamic Shallow-water Model of The Solar Tachocline: Equilibrium Shape and Thickness

The Astrophysical Journal
We build a multilayer magnetohydrodynamic shallow-water model to study the thickness and shape of the solar tachocline. This allows us to include characteristics of both the overshoot and the radiative parts of the tachocline.
Mausumi Dikpati, Peter A. Gilman
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Differential Rotation of Individual Sunspots and Pores

The Astrophysical Journal
The analysis of the rotation rate of individual sunspots and pores was performed according to the data from the processing of observations by the Solar Dynamics Observatory/Helioseismic and Magnetic Imager in the period 2010–2024.
Andrey G. Tlatov, Kseniya A. Tlatova
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On the Solar Differential Rotation and Meridional Currents

The Astrophysical Journal, 1967
Solar differential rotation and large scale meridional currents studied with hydrodynamic equations of motion including convective viscosity ...
openaire   +1 more source

A Dynamo Confinement Scenario for the Solar Tachocline and Its Implications for Spin-down in the Radiative Spreading Regime

The Astrophysical Journal
At the base of the Sun’s convective zone, a narrow shear layer called the tachocline separates strong latitudinal differential rotation above from nearly rigid rotation in the radiative zone below.
Loren I. Matilsky, Lydia Korre, Nicholas H. Brummell   +2 more
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Large-Scale Dynamics of the Convection Zone and Tachocline

Living Reviews in Solar Physics, 2005
The past few decades have seen dramatic progress in our understanding of solar interior dynamics, prompted by the relatively new science of helioseismology and increasingly sophisticated numerical models.
Miesch Mark S.
doaj  

Dynamo Confinement of a Radiatively Spreading Solar Tachocline Revealed by Self-consistent Global Simulations

The Astrophysical Journal Letters
The helioseismically observed solar tachocline is a thin internal boundary layer of shear that separates the rigidly rotating solar radiative zone from the differentially rotating convective zone and is believed to play a central role in the 22-yr solar ...
Loren I. Matilsky, Lydia Korre, Nicholas H. Brummell   +2 more
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Toroidal Magnetic Flux Budget in Mean-field Dynamo Model of Solar Cycles 23 and 24

The Astrophysical Journal
We study the toroidal magnetic flux budget of the axisymmetric part of a data-driven 3D mean-field dynamo model of Solar Cycles 23 and 24. The model simulates the global solar dynamo that includes the effects of the formation and evolution of bipolar ...
Valery V. Pipin, Alexander G. Kosovichev
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Saturation of the Large-scale Magnetic Field for Fast Rotating Solar-like Stars Driven by Inefficient Turbulent Angular Momentum Transport

The Astrophysical Journal
Magnetic activity in solar-like stars shows a systematic dependence on stellar rotation rate, known as the “activity–rotation relationship.” Recent observations further reveal that large-scale surface magnetic fields in solar-like stars are ...
Ryota Shimada, Takaaki Yokoyama
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Differential coronal rotation and solar activity

, 2012
We investigated the latitudinal variation in the coronal rotation by using observations taken with Nobeyama Radioheliograph (NoRH) at 17 GHz. The time series bins are formed on different latitude regions of the solar full disc (SFD) radio image, which extend up to ±60◦ in both the hemispheres.
openaire   +2 more sources

Helioseismic Properties of Dynamo Waves in the Variation of Solar Differential Rotation

The Astrophysical Journal
Solar differential rotation exhibits a prominent feature: its cyclic variations over the solar cycle, referred to as zonal flows or torsional oscillations, are observed throughout the convection zone.
Krishnendu Mandal, Alexander G. Kosovichev, Valery V. Pipin   +2 more
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