Observation of standing kink waves in solar spicules

Details Observation of standing kink waves in solar spicules Observation of standing kink waves in solar spicules

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012ap%26ss.337...33e&link_type=abstract

Astrophysics and Space Science, Volume 337, Issue 1, pp.33-37

Astronomy and Astrophysics

Astrophysics

1

Sun: Spicules, Mhd Waves: Dispersion Relation, Kink Modes

Scientific paper

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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