2015/07/27 by V. Abbasvand, Abbasvand, V., H. Ebadi +3
Physics and Astronomy · #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Solar and Stellar Astrophysics (astro-ph.SR) #astro-ph.GA #astro-ph.SR
paper · pdf · doi:10.48550/arxiv.1507.07393
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
arxiv created 2015/07/27 · arxiv updated 2015/07/28
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 λ ~ 1/0.06 arcsec ~ 11500 km, the estimated kink speed is ~ 13-83 km/s. We obtained the magnetic field strength in spicules as B0 = 2 - 12.5 G and the energy flux as 7 - 227 J/m-2s.