Hypersonic Pulsing Regimes of Magnetic Field Emerge From Lower Layers of the Convective Zone Up to the Photosphere of the Sun
KRASNOYARSK INST OF NON-FERROUS METALS (USSR)
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Oscillations of an isolated thin magnetic tube at various depths of the convective zone and in the atmosphere of the Sun are investigated in the present work in the approximation of ideal magnetic gas-dynamics. These oscillations are the source of generation of acoustic waves whose transition in weak shock waves provides anomalous heating of the solar atmosphere. The modes of small-amplitude linear oscillations at various depths of the convective zone are investigated. The loss of stability of equilibrium of the magnetic tube which is initially at rest in the convective zone as well as the nonlinear large-scale oscillations of the tube and tube emergence into the solar atmosphere are independently investigated. The results obtained are fundamental for research of sunspot generation and physics of solar activity, they are important for analysis of generation and tine evolution of global magnetic structures, solar wind, and some other astrophysical phenomena.