Results 151 to 160 of about 242,574 (198)
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Solar radiation and solar differential rotation

Solar Physics, 1988
Areas of sunspots and their positions taken from the Greenwich Photoheliographic Results (1874–1976) and typical intensities of the umbrae and penumbrae are used to calculate daily values of the solar flux at a wavelength of about 500 nm. Using overlapping time series of 512 days each solar rotation periods are determined by Fourier transformation. The
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Solar rotation and solar wind–magnetosphere coupling

Planetary and Space Science, 2005
Abstract This paper deals with three characteristics of the interplanetary magnetic field (IMF), important for solar wind–magnetosphere coupling and related to solar rotation: the IMF azimuthal component, the IMF total magnitude, and the handedness or the sense of rotation of magnetic clouds. The IMF configuration is described by Parker's Archimedian
K. Georgieva   +3 more
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Divers Solar Rotations

1972
The subject of solar rotation, or more properly rotations, has become of considerable interest in the last few years. These new developments are primarily associated with spacecraft observations, including observations of the interplanetary medium near the earth, and with improved ground-based solar telescopes and digital data-handling facilities.
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Internal Solar Rotation

1991
The helioseismic determination of the angular velocity distribution within the sun is discussed. In particular, the bulk of the radiative interior of the sun is rotating at more-or-less the same rate as the photosphere. The latitudinal variation of angular velocity appears to change quite abruptly immediately beneath the base of the convection zone ...
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Differential solar rotation depends on solar activity

Nature, 1979
SUNSPOTS have long been used as tracers to determine the rotation rate of the Sun. Scheiner1 noted 250 years ago that low-latitude sunspots rotate more rapidly than those at high latitude (‘differential rotation’). In a recent review, Howard2 stressed the limitations of the sunspot technique for determining rotation rate and differential rotation, as ...
D. H. CLARK   +4 more
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Solar and stellar rotation

2006
The secular evolution of the stellar rotation through angular momentum loss, driven by the stellar wind, and the consequences of the angular momentum transfers between orbit and spinning components in binary star systems will be reviewed with the special emphasis on the Solar rotation.
FİLİZ AK, Nurten   +2 more
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The Differential Solar Rotation

1994
Theory and observations of the solar differential rotation are reviewed, concentrating on recent developments. Reynolds stresses produced by stratified rotating turbulence have recently become available as fully nonlinear functions of the angular velocity. A model based on this theory has reproduced the solar rotation; almost no tuning of the theory to
Günther Rüdiger, Leonid L. Kitchatinov
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Solar and Planetary Rotation

1871
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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On the Solar Rotation

1986
It is pointed out that the solar rotation curve published by Duvall et al. has been obtained without considering the accuracy of the observations. When the limited accuracy, of the order of 10−2, is taken into account, it is found that the data are compatible with a nearly solid rotation and that they do not contain enough information to give any ...
M. Gabriel, F. Nemry
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Solar Rotation

AIP Conference Proceedings, 2007
P. Garaud   +5 more
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