Hi-C and AIA observations of transverse magnetohydrodynamic waves in active regions

The recent launch of the High resolution Coronal imager (Hi-C) provided a unique opportunity of studying 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 ha...

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Bibliographic Details
Published in:Astronomy and astrophysics (Berlin) 2013-05, Vol.553, p.np-np
Main Authors: Morton, R. J., McLaughlin, J. A.
Format: Article
Language:English
Subjects:
Amplitudes
Astronomy
Coronal loops
Displacement
Low energy
Magnetohydrodynamic waves
magnetohydrodynamics (MHD)
Spatial resolution
Sun: chromosphere
Sun: corona
Transverse waves
waves
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Summary:The recent launch of the High resolution Coronal imager (Hi-C) provided a unique opportunity of studying 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
ISSN:0004-6361
1432-0746
DOI:10.1051/0004-6361/201321465