Seismology of solar spicules based on Hinode/SOT observations
Solar and Stellar Astrophysics
2015-07-28 v1 Astrophysics of Galaxies
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 undergoes quasi-periodic transverse displacement. We determined the period of transverse displacement as ~40-150 s and the mean amplitude as ~ 0.1-0.5 arcsec. For the oscillation wavelength of ~ 1/0.06 arcsec ~ 11500 km, the estimated kink speed is ~ 13-83 km/s. We obtained the magnetic field strength in spicules as B_0 = 2 - 12.5 G and the energy flux as 7 - 227 J/m^-2s.
Keywords
Cite
@article{arxiv.1507.07393,
title = {Seismology of solar spicules based on Hinode/SOT observations},
author = {V. Abbasvand and H. Ebadi and Z. Fazel},
journal= {arXiv preprint arXiv:1507.07393},
year = {2015}
}
Comments
Published in Iranian Journal of Astronomy and Astrophysic. arXiv admin note: text overlap with arXiv:1209.5693; text overlap with arXiv:1208.4404 by other authors