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Forward Modelling of Standing Kink Modes in Coronal Loops II. Applications View all abstracts by submitter

Ding Yuan   Submitted: 2016-03-08 03:34

Magnetohydrodynamic waves are believed to play a significant role in coronal heating, and could be used for remote diagnostics of solar plasma. Both the heating and diagnostic applications rely on a correct inversion (or backward modelling) of the observables into the thermal and magnetic structures of the plasma. However, owing to the limited availability of observables, this is an ill-posed issue. Forward Modelling is to establish a plausible mapping of plasma structuring into observables. In this study, we set up forward models of standing kink modes in coronal loops and simulate optically thin emissions in the extreme ultraviolet bandpasses, and then adjust plasma parameters and viewing angles to match three events of transverse loop oscillations observed by the Solar Dynamics Observatory/Atmospheric Imaging Assembly. We demonstrate that forward models could be effectively used to identify the oscillation overtone and polarization, to reproduce the general profile of oscillation amplitude and phase, and to predict multiple harmonic periodicities in the associated emission intensity and loop width variation.

Authors: Ding Yuan, Tom Van Doorsselaere
Projects: SDO-AIA

Publication Status: ApJS in press
Last Modified: 2016-03-08 12:17
Go to main E-Print page  Analytical solutions of continuity equation for joint collisional and Ohmic energy losses and their effects on hard X-ray emission.II. Mixed energy losses  Forward Modelling of Standing Kink Modes in Coronal Loops I. Synthetic Views  Edit Entry  Download Preprint  Submitter's Homepage Delete Entry 

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