Observation of standing kink waves in solar spicules |
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| Authors: | H Ebadi T V Zaqarashvili and I Zhelyazkov |
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| Abstract: | We analyze the time series of Ca ii H-line obtained from Hinode/SOT on the solar limb. The time-distance analysis shows that the axis of spicule undergos quasi-periodic transverse displacement
at different heights from the photosphere. The mean period of transverse displacement is ∼180 s and the mean amplitude is
1 arc sec. Then, we solve the dispersion relation of magnetic tube waves and plot the dispersion curves with upward steady
flows. The theoretical analysis shows that the observed oscillation may correspond to the fundamental harmonic of standing
kink waves. |
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