Documentation scienceplus.abes.fr version Bêta

À propos de : Hi-C and AIA observations of transverse magnetohydrodynamic waves in active regions        

AttributsValeurs
type
Is Part Of
Subject
Title
  • Hi-C and AIA observations of transverse magnetohydrodynamic waves in active regions
Date
has manifestation of work
related by
Author
Abstract
  • 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 <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 suggests that low-energy wave behaviour is typical of the coronal structures both before and after the Hi-C observations.
article type
publisher identifier
  • aa21465-13
Date Copyrighted
Rights
  • © ESO, 2013
Rights Holder
  • ESO
is part of this journal
is primary topic of



Alternative Linked Data Documents: ODE     Content Formats:       RDF       ODATA       Microdata