Axisymmetric and non-axisymmetric modulated MHD waves in magnetic flux tubes

被引：1
|
作者：
Chargeishvili, B. B. [1 ]
Japaridze, D. R. [1 ]
机构：
[1] Ilia State Univ, Abastumani Astrophys Observ, GE-0162 Tbilisi, Georgia
来源：
NEW ASTRONOMY | 2016年 / 43卷
关键词：
Physical data and processes: MHD; Physical data and processes: waves; Sun: chromosphere; Sun: magnetic fields;
D O I：
10.1016/j.newast.2015.07.008
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Nonlinear modulated both axisymmetric and non-axisymmetric MHD wave propagation in magnetic flux tubes is studied. In the cylindrical coordinates, ordinary differential equation with cubic nonlinearity is derived. In both cases of symmetry, the equation has solitary solutions. Modulation stability of the solutions is studied. The results of the study show that the propagation of axisymmetric soliton causes rising of plasma temperature in peripheral regions of a magnetic flux tube. In the non-axisymmetric case, it gives also temperature rising effect. Results of theoretical study are examined on idealized model of chromospheric spicule. (C) 2015 Elsevier B.V. All rights reserved.
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页码：37 / 41
页数：5
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