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arXiv · 0903.0212

Network Loop Oscillations with EIS/Hinode

A. K. Srivastava·D. Kuridze·T. V. Zaqarashvili·B. N. Dwivedi·B. Rani
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Abstract

We analyze a time sequence of He II 256.32 angstrom images obtained with EIS/Hinode, sampling a small magnetic loop in magnetic network. Wavelet analysis indicates 11-min periodicity close to the loop apex. We interprete this oscillation as forcing through upward leakage by the fundamental acoustic eigenmode of the underlying field-free cavity. The observed loop length corresponds to the value predicted from this mechanism.

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A. K. Srivastava, D. Kuridze, T. V. Zaqarashvili, B. N. Dwivedi, B. Rani. 2009-03-02. Network Loop Oscillations with EIS/Hinode. https://doi.org/10.1007/978-3-642-02859-5_50

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