M. Selwa et al 2007 ApJ 668 L83 doi:10.1086/522602
M. Selwa1, L. Ofman1 and K. Murawski2
Show affiliationsWe consider slow standing waves that are impulsively excited in a curved solar coronal loop. The numerical model we implement includes the effect of nonlinearity in the frame of two-dimensional ideal magnetohydrodynamics. We discuss the role of curved magnetic field lines and of the slow and fast pulses overlapping at one of the loop's footpoints in the excitation and attenuation of slow standing waves. We find that slow waves can be excited faster in curved loops than in slabs due to the combined effect of the pulse inside and outside the loop.
Issue 1 (2007 October 10)
Received 2007 June 26, accepted for publication 2007 August 20
Published 2007 September 27
M. Selwa et al 2007 ApJ 668 L83
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