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2016•Astronomy and AstrophysicsOpen access

Spatially resolved observation of the fundamental and second harmonic standing kink modes using SDO/AIA

D. J. Pascoe, C. R. Goddard, Valery M. Nakariakov

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Abstract

Aims. We consider a coronal loop kink oscillation observed by the Atmospheric Imaging Assembly (AIA) of the Solar Dynamics Observatory (SDO) which demonstrates two strong spectral components. The period of the lower frequency component being approximately twice that of the shorter frequency component suggests the presence of harmonics.

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Aims. We consider a coronal loop kink oscillation observed by the Atmospheric Imaging Assembly (AIA) of the Solar Dynamics Observatory (SDO) which demonstrates two strong spectral components. The period of the lower frequency component being approximately twice that of the shorter frequency component suggests the presence of harmonics.

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Available abstract

Aims. We consider a coronal loop kink oscillation observed by the Atmospheric Imaging Assembly (AIA) of the Solar Dynamics Observatory (SDO) which demonstrates two strong spectral components. The period of the lower frequency component being approximately twice that of the shorter frequency component suggests the presence of harmonics.

Key concepts: Physics, Astrophysics, Harmonics, Oscillation (cell signaling), Coronal loop, Harmonic, Observatory, Component (thermodynamics)

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