Skip to main content
Log in

Morphology of H-alpha filaments and filament channel systems

  • Published:
Journal of Astrophysics and Astronomy Aims and scope Submit manuscript

Abstract

Ring-like filaments have been detected on the spectroheliograms in the H-alpha line. Inside these filaments the magnetic field flux has a predominant polarity. Some of the dark filaments are connected by filament channels which can be seen at the limb either as (a) weak prominences or (b) dense low chromospheric features or (c) multi-channel system of matter flow between two prominences or (d) common quiescent prominences. The filament and the filament channel together form a continuous closed contour and outline the region of thef polarity particularly at the beginning of the solar cycle. The change in sign of the polar field of the Sun is associated with the drift of the filament band to high latitudes.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Babcock, H. W., Babcock, H. D. 1955,Astrophys. J.,121, 349.

    Article  ADS  Google Scholar 

  • Krat, V. A. 1977,Radiofizika J.,20,1302.

    ADS  Google Scholar 

  • Makarov, V. I., Fatianov, M. N. 1980,Soln. Dann. Bjull., Moskva, No. 10, 96.

  • Makarov, V. I., Stoyanov, M. N. 1980,Soln. Dann. Bjull., Moskva, No. 8, 89.

  • McIntosh, P. S. 1972a,Rev. Geophys. Space Phys.,10, 837.

    ADS  Google Scholar 

  • McIntosh, P. S. 1972b, inSolar Activity Observations and Prediction, Eds P. McIntosh and M Dryer, MIT press, Cambridge, p. 65.

    Google Scholar 

  • McIntosh, P. S. 1975,World Data Center A for solar Terrestrial Physics Report UAG-40.

  • Öhman, Y. 1969,solar phys.,9, 427.

    Article  ADS  Google Scholar 

  • Stenflo, J. O. 1976, inIAU Symp. 71: Basic Mechanisms of solar Activity, Eds Y. Bumba and J. Kleczek, D. Reidel, Dordecht, p. 69.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Makarov, V.I., Stoyanova, M.N. & Sivaraman, K.R. Morphology of H-alpha filaments and filament channel systems. J Astrophys Astron 3, 379–382 (1982). https://doi.org/10.1007/BF02714879

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02714879

Key words

Navigation