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Hi-C & AIA observations of transverse MHD waves in active regions View all abstracts by submitter

Richard Morton   Submitted: 2013-05-02 07:08

The recent launch of the High resolution Coronal imager (Hi-C) provided a unique opportunity to study the EUV corona with unprecedented spatial resolution. We utilize these observations to investigate the properties of low frequency (50-200 s) active region transverse waves, whose omnipresence had been suggested previously. The five-fold improvement in spatial resolution over SDO/AIA reveals coronal loops with widths 150-310 km and that these loops support transverse waves with displacement amplitudes <50 km. However, the results suggest that wave activity in the coronal loops is of low energy, with typical velocity amplitudes <3 km s-1. An extended time-series of SDO data suggest low-energy wave behaviour is typical of the coronal structures both before and after the Hi-C observations.

Authors: R J Morton & J A McLaughlin
Projects: None

Publication Status: Accepted A&A Letters
Last Modified: 2013-05-02 09:04
Go to main E-Print page  A Challenging Solar Eruptive Event of 18 November 2003 and the Causes of the 20 November Geomagnetic Superstorm. I. Unusual History of an Eruptive Filament  Geometric properties of acoustic waves generated by a point source in the solar-like interior: effects of acoustic cutoff frequency  Edit Entry  Download Preprint  Delete Entry 

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