Including stereoscopic information in the reconstruction of coronal magnetic fields

T Wiegelmann, Thomas Neukirch

Research output: Contribution to journalArticlepeer-review

58 Citations (Scopus)

Abstract

We present a method to include stereoscopic information about the three-dimensional structure of flux tubes into the reconstruction of the coronal magnetic field. Due to the low plasma beta in the corona we can assume a force-free magnetic field, with the current density parallel to the magnetic field lines. Here we use linear force-free fields for simplicity. The method uses the line-of-sight magnetic field on the photosphere as observational input. The value of is determined iteratively by comparing the reconstructed magnetic field with the observed structures. The final configuration is the optimal linear force-free solution constrained by both the photospheric magnetogram and the observed plasma structures. As an example we apply our method to SOHO MDI/EIT data of an active region. In the future it is planned to apply the method to analyse data from the SECCHI instrument aboard the STEREO mission.

Original languageEnglish
Pages (from-to)233-251
Number of pages19
JournalSolar Physics
Volume208
Issue number2
DOIs
Publication statusPublished - Aug 2002

Keywords

  • FORCE-FREE FIELDS
  • CONSTANT-ALPHA
  • MAGNETOGRAPH DATA
  • EXTRAPOLATION
  • REPRESENTATION
  • EQUILIBRIUM
  • MODEL

Fingerprint

Dive into the research topics of 'Including stereoscopic information in the reconstruction of coronal magnetic fields'. Together they form a unique fingerprint.

Cite this