Volume 394, Number 3, November II 2002
|Page(s)||L39 - L42|
|Published online||21 October 2002|
Letter to the Editor
Coronal loop oscillations
An interpretation in terms of resonant absorption of quasi-mode kink oscillations
Centre for Plasma Astrophysics, K. U. Leuven, Celestijnenlaan 200B, 3001 Leuven, Belgium
2 Lockheed Martin Advanced Technology Center, Solar and Astrophysics Lab., Hanover Street, Palo Alto, CA 94304, USA
Corresponding author: J. Andries, firstname.lastname@example.org
Accepted: 19 September 2002
Damped quasi-mode kink oscillations in cylindrical flux tubes are capable of explaining the observed rapid damping of the coronal loop oscillations when the ratio of the inhomogeneity length scale to the radius of the loop is allowed to vary from loop to loop, without the need to invoke anomalously low Reynolds numbers. The theoretical expressions for the decay time by Hollweg & Yang ([CITE]) and Ruderman & Roberts ([CITE]) are used to estimate the ratio of the length scale of inhomogeneity compared to the loop radius for a collection of loop oscillations.
Key words: Sun: corona / magnetic fields / oscillations
© ESO, 2002
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