UNSPECIFIED. (2004) Characteristics of transverse oscillations in a coronal loop arcade. SOLAR PHYSICS, 223 (1). pp. 77-94. ISSN 0038-0938

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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
Subjects:	Q Science > QB Astronomy
Journal or Publication Title:	SOLAR PHYSICS
Publisher:	SPRINGER
ISSN:	0038-0938
Date:	November 2004
Volume:	223
Number:	1
Number of Pages:	18
Page Range:	pp. 77-94
Identification Number:	10.1007/s11207-004-0807-6
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/7316

Data sourced from Thomson Reuters' Web of Knowledge

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