Skip to main content

Crossing Filaments

Abstract

Solar filaments show the position of large-scale polarity-inversion lines and are used for the reconstruction of large-scale solar magnetic field structure on the basis of Hα synoptic charts for the periods that magnetographic measurements are not available. Sometimes crossing filaments are seen in Hα filtergrams. We analyze daily Hα filtergrams from the archive of Big Bear Solar Observatory for the period of 1999 – 2003 to find crossing and interacting filaments. A number of examples are presented and filament patterns are compared with photospheric magnetic field distributions. We have found that all crossing filaments reveal quadrupolar magnetic configurations of the photospheric field and presume the presence of null points in the corona.

This is a preview of subscription content, access via your institution.

References

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Boris Filippov.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Filippov, B., Srivastava, A.K. Crossing Filaments. Sol Phys 270, 151–164 (2011). https://doi.org/10.1007/s11207-011-9721-x

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11207-011-9721-x

Keywords

  • Filaments
  • Magnetic fields
  • Prominences
  • Reconnection