Results 141 to 150 of about 3,457 (163)

Models of solar differential rotation

1984
o-.rr rcdels give the deperrdence of the angular velocity at the Sunis equator on the depth of the convecÈion zcne. In order to drive differential rotation we ccnsidered two different rnechanisxns: latirude depe:rience of the n:xj"ng length and the anisoircpy of :ie turbulent viscosity.
Pidatella, Rosa Maria, Stix, M., Belvedere, G., Paternò. L.   +3 more
openaire   +1 more source

The solar differential rotation from the eightteenth solar cycle

Astrophysics and Space Science, 1982
The sidereal daily rotation of the Sun, ζ(φ), depends on the data used. From an appropriate selection of the data — sunspots with regular motion — it is found that ζ(φ)=14.31–2.70 sin2 φ, where φ denotes the heliographic latitude. Moreover, it seems that there is a variation, of the order of 3%, with the solar activity.
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Hydrodynamical Investigation of the Solar Differential Rotation

Publications of the Astronomical Society of Japan, 1966
Abstract The differential rotation of the sun is investigated from Biermann’s viewpoint which ascribes its cause to the non-isotropy of the eddy viscosity. The hydrogen convection layer is considered to be a thin layer rotating independently of the inner stable region, and its rotational motion is investigated on the basis of Wasiutyński’
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On the differential rotation with height in the solar atmosphere

Solar Physics, 1969
Spectroscopic measurements of solar rotation having good height discrimination show no change in angular velocity through the photosphere layers but an increase of 8% for the Hα chromosphere (epoch 1968.9). Spectroscopic results in general are compared with measures made with tracers, i.e.
openaire   +1 more source

A technique for measuring solar differential rotation

Journal of the British Astronomical Association
The Sun exhibits differential rotation, with its rotation rate or period varying with heliographic latitude. This short paper demonstrates a method for using full-disc white-light solar images to measure the Sun’s rotation rate at different latitudes. Using images from the Solar Dynamics Observatory, suitable sunspots are selected. The central meridian
openaire   +1 more source

Solar differential rotation reproduced with high-resolution simulation

Nature Astronomy, 2021
Hideyuki Hotta, Kanya Kusano, Kusano K   +2 more
exaly  

Transition of latitudinal differential rotation as a possible cause of weakened magnetic braking of solar-type stars

Monthly Notices of the Royal Astronomical Society, 2023
Takeru Suzuki
exaly  

Characterizing the feedback of magnetic field on the differential rotation of solar-like stars

Advances in Space Research, 2016
Jacobo Varela, Antoine Strugarek, A S Brun   +2 more
exaly  

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

Solar Physics, 2013
Feng W, X J Shi, J L Xie
exaly  

Differential rotation of short-lived solar filaments

Solar Physics, 1977
Frances Tang
exaly