Transverse Oscillations of Coronal Loops with Slowly Changing Density

Details Transverse Oscillations of Coronal Loops with Slowly Changing Density Transverse Oscillations of Coronal Loops with Slowly Changing Density

Jul 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011soph..271...41r&link_type=abstract

Solar Physics, Volume 271, Issue 1-2, pp. 41-54

Physics

8

Sun, Corona, Coronal Loops, Oscillations

Scientific paper

In this paper we study kink oscillations of coronal loops with the density varying along the loop and also slowly changing with time. Using the Wentzel-Kramers-Brillouin (WKB) method we obtain the adiabatic invariant that determines the time dependence of the oscillation amplitude. The obtained general results are applied to kink oscillations of cooling loops. The main conclusion of this study is that cooling causes the amplification of kink oscillations.

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