Observations of ubiquitous compressive waves int he Sun's chromosphere

Authors Organisations
  • Richard J. Morton(Author)
    The University of Sheffield
  • Gary Verth(Author)
    The University of Sheffield
  • David B. Jess(Author)
    Queen's University Belfast
  • David Kuridze(Author)
    Queen's University Belfast
  • Michael S. Ruderman(Author)
    The University of Sheffield
  • Mihalis Mathioudakis(Author)
    Queen's University Belfast
  • Robertus Erdélyi(Author)
    The University of Sheffield
Type Article
Original languageEnglish
Article number1315
JournalNature Communications
Publication statusPublished - 27 Dec 2012
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The details of the mechanism(s) responsible for the observed heating and dynamics of the solar atmosphere still remain a mystery. Magnetohydrodynamic waves are thought to have a vital role in this process. Although it has been shown that incompressible waves are ubiquitous in off-limb solar atmospheric observations, their energy cannot be readily dissipated. Here we provide, for the first time, on-disk observation and identification of concurrent magnetohydrodynamic wave modes, both compressible and incompressible, in the solar chromosphere. The observed ubiquity and estimated energy flux associated with the detected magnetohydrodynamic waves suggest the chromosphere is a vast reservoir of wave energy with the potential to meet chromospheric and coronal heating requirements. We are also able to propose an upper bound on the flux of the observed wave energy that is able to reach the corona based on observational constraints, which has important implications for the suggested mechanism(s) for quiescent coronal heating