Seismology of Oscillating Flux Tube with Twisted Magnetic Field and Plasma Flow

Seismology of Oscillating Flux Tube with Twisted Magnetic Field and Plasma Flow Transverse oscillations of a thin coronal loop in a zero-beta plasma in the presence of a twisted magnetic field and flow are investigated. The dispersion relation is obtained in the limit of weak twist. The twisted magnetic field modifies the phase difference and asymmetry of standing kink oscillations caused by the flow. Using data from observations the kink speed and flow speed have been determined. The presence of the twisted magnetic field can cause underestimation or overestimation of the flow speed in coronal loops depending on the direction of the flow and twisted magnetic field, but a twisted magnetic field has little effect on the estimated value of the kink speed. Solar Physics Springer Journals

Seismology of Oscillating Flux Tube with Twisted Magnetic Field and Plasma Flow

Solar Physics , Volume 292 (8) – Aug 11, 2017

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Springer Netherlands
Copyright © 2017 by Springer Science+Business Media B.V.
Physics; Astrophysics and Astroparticles; Atmospheric Sciences; Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics)
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