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A&A 440, 385-390 (2005)
DOI: 10.1051/0004-6361:20053121

Numerical simulations of vertical oscillations of a solar coronal loop

M. Selwa¹, K. Murawski¹, S. K. Solanki², T. J. Wang² and G. Tóth<sup>3

1</sup>  Institute of Physics, UMCS, ul. Radziszewskiego 10, 20-031 Lublin, Poland
    e-mail: mselwa@kft.umcs.lublin.pl
²  Max-Planck-Institut für Sonnensystemforschung, Max-Planck-Str. 2, 37191 Katlenburg-Lindau, Germany
³  Department of Atomic Physics, Loránd Eötvös University, Pázmány Péter sétány 1/A, Budapest 1117, Hungary

(Received 23 March 2005 / Accepted 23 May 2005)

Abstract
We consider the impulsive excitation of fast vertical kink standing waves in a solar coronal loop that is embedded in a potential arcade. The two-dimensional numerical model we implement includes the effects of field line curvature and nonlinearity on the excitation and damping of standing fast magnetosonic waves. The results of the numerical simulations reveal wave signatures which are characteristic of vertical loop oscillations seen in recent TRACE observational data.

Key words: Sun: oscillations -- Sun: corona -- magnetohydrodynamics (MHD)

© ESO 2005

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