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Characteristics of transverse oscillations in a coronal loop arcade
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UNSPECIFIED (2004) Characteristics of transverse oscillations in a coronal loop arcade. SOLAR PHYSICS, 223 (1). pp. 77-94. doi:10.1007/s11207-004-0807-6 ISSN 0038-0938.
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Official URL: http://dx.doi.org/10.1007/s11207-004-0807-6
Abstract
TRACE observations from 15 April 2001 of transverse oscillations in coronal loops of a post-flare loop arcade are investigated. They are considered to be standing fast kink oscillations. Oscillation signatures such as displacement amplitude, period, phase and damping time are deduced from 9 loops as a function of distance along the loop length. Multiple oscillation modes are found with different amplitude profile along the loop length, suggesting the presence of a second harmonic. The damping times are consistent with the hypothesis of phase mixing and resonant absorption, although there is a clear bias towards longer damping times compared with previous studies. The coronal magnetic field strength and coronal shear viscosity in the loop arcade are derived.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QB Astronomy | ||||
Journal or Publication Title: | SOLAR PHYSICS | ||||
Publisher: | SPRINGER | ||||
ISSN: | 0038-0938 | ||||
Official Date: | November 2004 | ||||
Dates: |
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Volume: | 223 | ||||
Number: | 1 | ||||
Number of Pages: | 18 | ||||
Page Range: | pp. 77-94 | ||||
DOI: | 10.1007/s11207-004-0807-6 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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