Evidences to the pulse like origin of double spicules based on Hinode/SOT observations

Abstract

We analyze the time series of H$\alpha$ line obtained from Hinode/SOT on the solar limb. The wavelet analysis shows that there are nice correlations between dynamical properties of the two parts of a double spicule. The dominant periods for height variations are estimated ~90 and ~180 s. The length of two parts of the spicule oscillates with the period of around ~180 s. The mean distance between two parts of the spicule has a periodical treatment with the period of ~90 s. Our results show that the strong pulses may lead to the quasi periodic rising of chromospheric plasma into the lower corona in the form of spicules. The periodicity may result from the nonlinear wake behind the pulse in the stratified atmosphere.

Accepted for publication in Astrophysics and Space Science. arXiv admin note: text overlap with arXiv:1005.5624 by other authors

References in corpus (9)

• The Solar Optical Telescope for the Hinode Mission: An Overview
• Observation of kink waves in solar spicules
• Doppler shift oscillations in solar spicules
• Numerical simulations of spicule formation in the solar atmosphere
• Numerical simulations of solar macrospicules
• Suzaku observations of the HMXB 1A 1118-61
• Observation of standing kink waves in solar spicules
• Helical motion of magnetic flux tubes in the solar atmosphere
• Phase mixing of standing Alfven waves with shear flows in solar spicules

Cited by in corpus (4)

• The Possibility of Kelvin-Helmholtz Instability in Solar Spicules
• Observation of kink waves and their reconnection-like origin in solar spicules
• Observation of the period ratio P_1/P_2 of transversal oscillations in solar macro-spicules
• The period ratio P_1/P_2 of torsional Alfvén waves with steady flows in spicules