Multi-wavelength Fibril Dynamics and Oscillations above Sunspot-II Wave Propagation Signature

Emanuel Sungging Mumpuni, Dhani Herdiwijaya, Mitra Djamal, Thomas Djamaluddin

Abstract


In this work, the dynamics of one particular fibril were investigated through high-resolution multi-wavelength images with high cadence obtained from the Dutch Open Telescope. Based on exceptional observation data of Active Region 10789, 13th July 2005, we investigated the alternating fibril pattern using tomography of the multi-wavelength band, consisting of the hydrogen alpha line center and also the blue wing, the calcium II H line, and the G-band. Phase difference and coherence analyses were conducted for several points along the fibril and (k, ω) analysis was conducted to understand the wave interaction and its mechanism in the propagation process. Our findings suggest short- to long-period transitions along the fibril with coherence in 10-min oscillations in the penumbra.

Keywords


multi-wavelength; Sun: chromosphere; Sun: photosphere; tomography; oscillations; wave

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References


Sych, R.A. & Nakariakov, V.M., The Pixelised Wavelet Filtering Method to Study Waves and Oscillations in Time Sequences of Solar Atmospheric Images, Solar Physics, 248(2), pp. 395-408, 2008.

Yuan, D., Sych, R., Reznikova, V.E. & Nakariakov, V.M., Multi-height Observations of Magnetoacoustic Cut-off Frequency in a Sunspot Atmosphere, Astronomy & Astrophysics, 561, Art. Num. A19, pp. 1-6, 2014.

Bakunina, I.A., Abramov-Maximov, V.E., Nakariakov, V.M., Lesovoy, S.V., Soloviev, A.A., Tikhomirov, Y.V., Melnikov, V. F., Shibasaki, K., Nagovitsyn, Y.A. & Averina, E.L., Long-Period Oscillations of Sunspots by NoRH and SSRT Observations, Publications of the Astronomical Society of Japan, 65(SP1), Art. Num. S13, pp. 1-12, 2013.

Mumpuni, E.S., Herdiwijaya, D., Djamal, M. & Djamaluddin, T., Multi-wavelength Fibril Dynamics and Oscillations Above Sunspot-I. Morphological Signature, Research in Astronomy and Astrophysics. 15(11), pp. 1843-1856, 2015. DOI: 10.1088/1674-4527/15/11/007

Sych, R.A. & Nakariakov, V.M., Wave Dynamics in A Sunspot Umbra, Astronomy & Astrophysics, 569, ID.A72, pp. 1-8, 2014.

Yuan, D., Nakariakov, V. M., Chorley, N. & Foullon, C., Leakage of Long-period Oscillations from the Chromosphere to the Corona, Astronomy & Astrophysics, 533, id.A116, pp. 1-8, 2011.

Mumpuni, E. S., Herdiwijaya, D. & Djamal, M., Multi-wavelength Analysis from Tomography Study on Solar Chromosphere, in AIP Conference Proceedings, 1656(1), ID 070009, Viridi, S., Basar, K., Iskandar, F., Srigutomo, W. & Gunara, B.E., eds., pp. 1-3, 2015.

Rutten, R.J., Hammerschlag, R.H., Bettonvil, F.C.M., Sütterlin, P. & de Wijn, A.G., DOT Tomography of the Solar Atmosphere. I. Telescope Summary and Program Definition, Astronomy & Astrophysics, 413, p.1183-1189, 2004.

Chae, J., Yang, H., Park, H., Maurya, R.A., Cho, K-S. & Yurchysyn, V., Superpenumbral Fibrils Powered by Sunspot Oscillations, The Astrophysical Journal, 789(2), Art.ID. 108, pp. 1-11, 2014.

Hoekzema, N.M., Rimmele, T.R. & Rutten, R.J., Small-Scale Topology of Solar Atmospheric Dynamics. V. Acoustic Events and Internetwork Grains, Astronomy and Astrophysics, 390(2), pp. 681-690, 2002.

Jess, D.B., Reznikova, V.E., Van Doorsselaere, T., Keys, P.H. & Mackay, D.H., The Influence of the Magnetic Field on Running Penumbral Waves in the Solar Chromosphere, The Astrophysical Journal, 779(2), Art. ID. 168, pp. 1-11, 2013.




DOI: http://dx.doi.org/10.5614%2Fj.math.fund.sci.2018.50.3.4

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