Oscillations of a Giant Solar Tornado


1 Department of Physics, University of Zanjan, P.O. Box 45195-313, Zanjan, Iran

2 Physics Department, Faculty of Science, University of Zanjan, Zanjan, Iran


Solar magnetic tornadoes are known to be one of the mass and energy transport mechanisms from the lower solar atmosphere into the upper layers of the solar corona. A bright spiral structure with two arms is observed using high-cadence EUV images of 171, 193 and 304 Ǻ channels of Atmospheric Imaging Assembly (AIA) aboard the Solar Dynamics Observatory (SDO) on 10th of July 2011 for three hours. The structure studied here looks bright in front of dark background emissions. The rotational energy budget of this tornado is estimated using three different approaches. Results showed the rotational energy ranges between 1.95×1018 erg to 3.36×1019 erg. After correcting for the solar differential rotation, the oscillatory behaviour of the structure is studied using FFT technique. Results show four different regimes of oscillations: 3-min, 5-6 min, 8-11 min, and 15-17 min. The showed origin of each of these oscillations are discussed.


[1] Parker, E., Jess, D. B., Nanoares and the solar X-ray corona, The Astrophysical
Journal, 1988, 330, 474479.
[2] Brandt, P., Scharmer, G., Ferguson, S., Shine, R., Tarbell, T., Vortex ow in the solar photosphere, Nature, 1988, 335, 238240.
[3] Bonet, J., Marquez, I., Sanchez Almeida, J., Cabello, I., Domingo, V., Convectively driven vortex ows in the Sun, The Astrophysical Journal, 2008, 687, L131- L134.
[4] Bonet, J. A., et al., SUNRISE/IMaX observations of convectively driven vortex ows in the Sun, The Astrophysical Journal Letters, 2010, L139-L143.
[5] Wedemeyer-Bohm, S., Rouppe van der Voort. L., Astronomy and Astrophysics, 2009, 507, L9-L12.
[6] Scharmer, Goran B., Bjelksjo, Klas, Korhonen, Tapio K., Lindberg, Bo, Petterson, Bertil., Innovative Telescopes and Instrumentation for Solar Astrophysics, 2003, 341-350.
[7] Steno, J, O., Solar Physics, 1975, 42, 79-105.
[8] Kitiashvili, I. N., Kosovichev, A. G., Lele, S. K. Mansour, N. N., Wray, Astronomy and Astrophysics, American Geophysical Union, Fall Meeting, 2011, SH43A-1927.
[9] Kitiashvili, I. N., Kosovichev, A. G., Mansour, N. N., Lele, S. K., Wray, Astronomy and Astrophysics, Physica Scripta, 2012, 86, 018403.
[10] Pettit, E., Publications of the Yerkes Observatory, 1925, 4.iii-XXXVII.1.
[11] Wedemeyer-Bohm, Sven, Scullion, E., Steiner, O., Rouppe van der Voort, L., de La Cruz Rodriguez, J., Fedun, V., Erdelyi, R., Nature, 2012, 505-508.
[12] Wedemeyer, S., Scullion, E., Rouppe van der Voort, L., Bosnjak, A., Antolin, P., The Astrophysical Journal, 2013, 15.
[13] Su, Y., Wang, T., Veronig, A., Temmer, M., Gan, W., Astronomy and Astrophysics, 2012, 7.
[14] Panesar, N. K., Innes, D. E., Tiwari, S. K., Low, B. C., Astronomy and Astrophysics, 2013, 5.
[15] Nakariakov, V. M., Ofman, L., Astronomy and Astrophysics, 2001, L53-L56.
[16] De Moortel, I., Royal Society of London Transactions Series A, 2005, 2743-2760.
[17] De Moortel, I., Browning, P., Bradshaw, S. J., Pintr, B., Kontar, E. P., Astronomy and Astrophysics, 2008, 3.21-3.26.
[18] Walsh, R. W., Ireland, J., The Astronomy and Astrophysics Review, 2003, 1-41.
[19] Schmieder, B., Kucera, T. A., Knizhnik, K., Luna, M., Lopez-Ariste, A., Toot, D., The Astrophysical Journal, 2013, 11.
[20] Pereira, T. M. D., De Pontieu, B., Carlsson, M., Quantifying Spicules, The Astrophysical Journal, 2012, 759-18.
[21] Zaqarashvili, T.V. and Erdelyi, R., Space Science Reviews, 2009, 355-388.
[22] Ebadi, H., Ghiassi, M., Astrophysics and Space Science, Volume 353, Issue 1, pp.31-36.
[23] Lemen, J. R., Title, A. M., Akin, D. J., et al., Solar Physics, 2012, 275, 17.
[24] Mathioudakis, M., Jess, D. B., Erdelyi, R., Alfvn Waves in the Solar Atmosphere. From Theory to Observations, Space Science Reviews, 2013, 1-27.
[25] Hashemi-Nasab, F., Dadashi, N., Safari, H., Abedini, Y., 20th IASBS Meeting on Research in Astronomy, 2017, 84-87.
[26] Hashemi-Nasab, F., Study of a Giant Solar Vortex Flow, Master thesis, Uiversity of Zanjan, September 2018.
[27] Martinez-Sykora, J., De Pontieu, B., De Moortel, I., Hansteen, V. H., Carlsson, M., The Astrophysical Journal, 2018, 12.
[28] Su, Y., Gomory, P., Veronig, A., et al., The Astrophysical Journal, 2014, 785:L2.
[29] Q. M. Zhang, P. F.; Chen Y. Guo C. Fang M. D. Ding., The Astrophysical Journal, 2012, 746:19.