Results 11 to 20 of about 1,473,750 (302)

Helioseismic evidence that the solar dynamo originates near the tachocline [PDF]

open access: yesScientific Reports
The exact location of the solar dynamo remains uncertain–whether it operates primarily in the near-surface shear layer, throughout the entire convection zone, or near the tachocline - a region of sharp transition in the solar rotation, located at the ...
Krishnendu Mandal   +1 more
doaj   +2 more sources

The mechanism of magnetic flux rope rotation during solar eruption

open access: yesFrontiers in Physics, 2023
Solar eruptions often show the rotation of filaments, which is a manifestation of the rotation of erupting magnetic flux rope (MFR). Such a rotation of MFR can be induced by either the torque exerted by a background shear-field component (which is an ...
Zhenjun Zhou   +9 more
doaj   +2 more sources

Relationship between solar wind corotating interaction regions and the phasing and intensity of Saturn kilometric radiation bursts [PDF]

open access: yes, 2008
Voyager spacecraft measurements of Saturn kilometric radiation (SKR) identified two features of these radio emissions: that they pulse at a period close to the planetary rotation period, and that the emitted intensity is correlated with the solar wind ...
L. Lamy   +18 more
core   +5 more sources

Solar and stellar rotation [PDF]

open access: yes, 2007
Workshop on Solar and Stellar Physics through Eclipses -- MAR 27-29, 2006 -- Ankara Univ, ORSEM Campus, Side, Antalya, TURKEYThe secular evolution of the stellar rotation through angular momentum loss, driven by the stellar wind, and the consequences of ...
Demircan, O., Filiz-Ak, N., Eker, Z.
core   +4 more sources

Optical control of solar sails using distributed reflectivity [PDF]

open access: yes, 2014
The dynamics of solar sails with a variable surface reflectivity distribution are investigated. When changing the reflectivity across the sail film, which can be achieved using electro-chromic coatings, the solar radiation pressure forces and torques ...
Jeannette Heiligers   +12 more
core   +2 more sources

Differential Rotation for Different-sized Sunspot Groups Early Observed by the OGAUC

open access: yesThe Astrophysical Journal, 2023
Solar differential rotation is an important ingredient of the solar dynamo model, not only because the solar rotation profile is one of the key inputs in a solar dynamo model, but also because it imposes constraints for the solar dynamo model.
Miao Wan   +3 more
doaj   +1 more source

The Rotation of the Deep Solar Layers [PDF]

open access: yesThe Astrophysical Journal, 2003
From the analysis of low-order GOLF+MDI sectoral modes and LOWL data (l > 3), we derive the solar radial rotation profile assuming no latitudinal dependance in the solar core. These low-order acoustic modes contain the most statistically significant information about rotation of the deepest solar layers and should be least influenced by internal ...
Couvidat, S.   +5 more
openaire   +2 more sources

On the Rotation of the Solar Chromosphere [PDF]

open access: yesThe Astrophysical Journal, 2020
Abstract Rotation is a significant characteristic of the Sun and other stars, and it plays an important role in understanding their dynamo actions and magnetic activities. In this study, the rotation of the solar chromospheric activity is investigated from a global point of view with an over 40 yr Mg ii index.
Jing-Chen Xu   +2 more
openaire   +2 more sources

Earth's Rotation and Solar Activity [PDF]

open access: yesGeophysical Journal International, 1989
Summary The 11-yr signal in the variation of length of day has been successfully identified and significantly linked to solar activity. A physical mechanism involving meteorological and oceanic variation is proposed.
MAZZARELLA, ADRIANO, PALUMBO A.
openaire   +3 more sources

Transition from anti-solar to solar-like differential rotation: Dependence on Prandtl number [PDF]

open access: yes, 2022
(abridged) Context: Late-type stars such as the Sun rotate differentially due to the interaction of turbulent convection and rotation. Aims: The aim of the study is to investigate the effects of the thermal Prandtl number on the transition from anti ...
Käpylä, Petri J.,   +4 more
core   +1 more source

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