Results 331 to 340 of about 1,589,837 (361)

The measurement of solar magnetic fields

, 1978
Solar activity is basically caused by the interaction between magnetic fields, solar rotation and convective motions. Detailed mapping of the Sun's rapidly varying magnetic field helps one to understand the mechanisms of solar activity.
J. Stenflo
semanticscholar   +1 more source

Evolution of the solar magnetic field

Icarus, 1965
Abstract The possibility is demonstrated that the solar magnetic field, rather than being of internal origin, may have originated, during the process of the Sun's formation, from a galactic magnetic field which pervaded the interstellar gas out of which the Sun condensed The magnetic field in the condensing gas cloud is maintained at approximately ...
Thomas P. Mitchell, G.W. Pneuman
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Solar and Interplanetary Magnetic Fields

Science, 1966
Space probe observations of solar wind, solar magnetic field and interplanetary magnetic ...
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A View of Solar Magnetic Fields, the Solar Corona, and the Solar Wind in Three Dimensions

, 1978
: In the last few years it was learned that the solar corona and the solar wind are three-dimensional. That is, the deviations from spherical or even cylindrical symmetry and first-order effects, that are important for our basic description and indeed ...
J. Wilcox, L. Svalgaard
semanticscholar   +1 more source

The Solar Magnetic Field and the Solar Activity

1965
The Sun has a mass of 2 × 1033 g, a radius of 7 × 1010 cm, a luminosity of 3.6 × 1033 ergs sec-1. The internal structure of the Sun is determined by the equation of hydrostatic equilibrium, the equation of transfer of energy and the equation of energy generation by thermonuclear reactions.
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Solar polar magnetic field

Geomagnetism and Aeronomy, 2013
The solar polar magnetic field has attracted the attention of researchers since the polar magnetic field reversal was revealed in the middle of the last century (Babcock and Livingston, 1958). The polar magnetic field has regularly reversed because the magnetic flux is transported from the sunspot formation zone owing to differential rotation ...
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Magnetic Fields and Solar Activities

Astrophysics and Space Science, 2006
We discuss the study of solar magnetic fields based on the photospheric vector magnetograms of solar active regions which were obtained at Huairou Solar Observing Station near Beijing in the period of 22nd and 23th solar cycles. The measurements of the chromospheric magnetic field and the spatial configuration of the field at the lower solar atmosphere
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Magnetic Fields in the Solar Corona

Nature, 1967
IT has been proposed by Sturrock1 that the frequency splitting sometimes observed in type II solar radio bursts may be caused by excitation of plasma oscillations by supra-thermal electrons moving through the solar corona in the presence of density irregularities and a weak magnetic field. He showed that in these circumstances electromagnetic waves may
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Solar Magnetic Fields and Convection

1976
We review the primordial field theory of solar magnetic fields (Papers I–VI) whose three main features are, first, a permanent dipole-like magnetic field, second a mainly toroidal field formed by shearing and rolling into individual, helically twisted ropes as suggested by Babcock, and third a mechanism for reversing the toroidal field.
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Observing the Solar Magnetic Field

2000
Problems of “weak” magnetic fields diagnostics in the upper solar atmosphere are discussed, where the Zeeman splitting is 3-4 orders of magnitude less than the line width. This corresponds to magnetic observations of chromosphere, prominences and the corona requiring more advanced technique as compared with the photosphere.
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