Network Loop Oscillations with EIS/Hinode
Solar and Stellar Astrophysics
2015-05-13 v1
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.
Cite
@article{arxiv.0903.0212,
title = {Network Loop Oscillations with EIS/Hinode},
author = {A. K. Srivastava and D. Kuridze and T. V. Zaqarashvili and B. N. Dwivedi and B. Rani},
journal= {arXiv preprint arXiv:0903.0212},
year = {2015}
}
Comments
3 pages, 3 figures; To appear in "Magnetic Coupling between the Interior and the Atmosphere of the Sun", eds. S.S. Hasan and R.J. Rutten, Astrophysics and Space Science Proceedings, Springer-Verlag, Heidelberg, Berlin, 2009