Diagnostics of solar wind flows |
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Authors: | N A Lotova K V Vladimirskii V N Obridko |
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Institution: | (1) Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radiowave Propagation (IZMIRAN), Russian Academy of Sciences, Troitsk, Moscow oblast, 142190, Russia;(2) Lebedev Institute of Physics, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 117924, Russia |
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Abstract: | The formation of the solar wind, the plasma flows from the Sun, is studied by new methods that have been developed in recent years. Experiments on circumsolar plasma sounding at radial heliocentric distances of ~2.5–60R ⊙ form their basis. Experimental data are used to construct the correlation diagrams-the location of the boundary of the transonic solar wind transition region versus the magnetic field strength in the region of the flow sources. The 2000–2004 correlation diagrams reveal flows of six types that differ by the magnetic field structure in their sources. During the decline of solar activity in 2003–2004, the evolution of the slow solar wind flows has been found to be determined not by the Wolf numbers, but by the total strength of the global magnetic field in the solar corona. |
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Keywords: | Sun solar wind |
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