Note on the Initial Value Problem for Coronal Loop Kink Waves |
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| Authors: | P S Cally |
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| Institution: | (1) Centre for Stellar and Planetary Astrophysics, School of Mathematical Sciences, Monash University, Victoria, 3800, Australia |
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| Abstract: | Simple fluxtube models of coronal loops have previously been found to support leaky oscillations, where energy escapes from
the tube laterally, thereby damping the mode. Of particular interest is the Principal Fast Leaky Kink mode (PFLK), which may
be implicated in the decay of loop oscillations observed by TRACE. However, recently, M.S. Ruderman and B. Roberts, J. Plarma Phys. (in press), claimed that the PFLK mode, and many other leaky modes of oscillation, are unphysical, based on an initial value
calculation. In this note, their arguments are shown to be incorrect. |
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