Photospheric cancelling magnetic features and associated phenomena in a stratified solar atmosphere

B von Rekowski, Alan William Hood

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We present two-dimensional numerical magnetohydrodynamics (MHD) simulations of a photospheric cancelling magnetic feature (CMF) and the associated reconnection event in a stratified solar atmosphere. Both, reconnection phase and cancellation phase, are modelled in a self-consistent way. It is found that different quiet-Sun phenomena result from the CMF, which is driven by converging photospheric flows. The type of structure forming in the low solar atmosphere depends on the initial overall plasma density magnitude and on the heating and cooling mechanisms included. The arising phenomenon can be a bright structure such as an X-ray bright point, a small-scale filament or a mixture of both of them. Loop-like brightening in various parts of the magnetic structure is found in all cases.

Original languageEnglish
Pages (from-to)1792-1812
Number of pages21
JournalMonthly Notices of the Royal Astronomical Society
Volume385 1792-1812
Issue number4
DOIs
Publication statusPublished - 21 Apr 2008

Keywords

  • MHD
  • sun : atmosphere
  • sun : filaments
  • sun : flares
  • sun : magnetic fields
  • RAY BRIGHT POINTS
  • CANCELLATION
  • FILAMENTS
  • EVOLUTION
  • BIPOLES
  • FLUX

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