Journal of Mathematical and Fundamental Sciences
Vol. 50 No. 3 (2018)

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

Emanuel Sungging Mumpuni (Space Science Center, Lembaga Penerbangan dan Antariksa Nasional (LAPAN), Jalan Doktor Djunjunan No.133, Bandung 40173)
Dhani Herdiwijaya (Graduate Program in Astronomy, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132)
Mitra Djamal (Graduate Program in Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132)
Thomas Djamaluddin (Space Science Center, Lembaga Penerbangan dan Antariksa Nasional (LAPAN), Jalan Doktor Djunjunan No.133, Bandung 40173)

Article Info

Publish Date
21 Dec 2018

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.

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Journal Info
Journal of Mathematical and Fundamental Sciences
Website

Abbrev

jmfs

Publisher

Institut Teknologi Bandung

Subject

Astronomy Chemistry Earth & Planetary Sciences Mathematics Physics

Description

Journal of Mathematical and Fundamental Sciences welcomes full research articles in the area of Mathematics and Natural Sciences from the following subject areas: Astronomy, Chemistry, Earth Sciences (Geodesy, Geology, Geophysics, Oceanography, Meteorology), Life Sciences (Agriculture, Biochemistry, ...