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Phase mixing of a three dimensional magnetohydrodynamic pulse
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UNSPECIFIED. (2003) Phase mixing of a three dimensional magnetohydrodynamic pulse. ASTRONOMY & ASTROPHYSICS, 400 (3). pp. 1051-1055. ISSN 0004-6361
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Official URL: http://dx.doi.org/10.1051/0004-6361:20030062
Abstract
Phase mixing of a three dimensional magnetohydrodynamic (MHD) pulse is studied in the compressive, three-dimensional (without an ignorable coordinate) regime. It is shown that the efficiency of decay of an Alfvenic part of a compressible MHD pulse is related linearly to the degree of localization of the pulse in the homogeneous transverse direction. In the developed stage of phase mixing (for large times), coupling to its compressive part does not alter the power-law decay of an Alfvenic part of a compressible MHD pulse. The same applies to the dependence upon the resistivity of the Alfvenic part of the pulse. All this implies that the dynamics of Alfven waves can still be qualitatively understood in terms of the previous 2.5D models. Thus, the phase mixing remains a relevant paradigm for the coronal heating applications in the realistic 3D geometry and compressive plasma.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QB Astronomy |
| Journal or Publication Title: | ASTRONOMY & ASTROPHYSICS |
| Publisher: | E D P SCIENCES |
| ISSN: | 0004-6361 |
| Date: | March 2003 |
| Volume: | 400 |
| Number: | 3 |
| Number of Pages: | 5 |
| Page Range: | pp. 1051-1055 |
| Identification Number: | 10.1051/0004-6361:20030062 |
| Publication Status: | Published |
| URI: | http://wrap.warwick.ac.uk/id/eprint/9968 |
Data sourced from Thomson Reuters' Web of Knowledge
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