Skip to main content
SpringerLink
Log in

Computation of inner coronal magnetic fields from longitudinal field components on a spherical photosphere

  • Published:
Solar Physics Aims and scope Submit manuscript

Abstract

A method is developed which for a certain day permits the approximate calculation of closed small and large scale magnetic field lines. From the photospheric longitudinal components of the magnetic field measured at this day normal components are derived taking into account the curvature of the solar surface. The magnetic fields are assumed to be potential or force-free fields.

The method is applied to observations of September 5 and September 7, 1973. The projected magnetic field lines are compared with the loop structures which are visible in XUV pictures taken on these days. In the cases where no good agreement could be obtained for potential fields, force-free fields are calculated and fitted to the observed structures.

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

Access this article

Log in via an institution

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

  • Adams, J. and Pneuman, G. W.: 1976, Solar Phys. 46, 185.

    Google Scholar 

  • Altschuler, M. D., Levine, R. L., Stix, M., and Harvey, J.: 1977, Solar Phys. 51, 345.

    Google Scholar 

  • Chiu, Y. T. and Hilton, H. H.: 1977, Astrophys. J. 212, 873.

    Google Scholar 

  • Magnus, W., Oberhettinger, F., and Soni, R. P.: 1966, Formulas and Theorems for the Special Functions of Mathematical Physics, Springer, Berlin.

    Google Scholar 

  • Nakagawa, Y.: 1973, Astron. Astrophys. 27, 95.

    Google Scholar 

  • Nakagawa, Y. and Raadu, M. A.: 1972, Solar Phys. 25, 127.

    Google Scholar 

  • Neupert, W. M., Nakagawa, Y., and Rust, D. M.: 1975, Solar Phys. 43, 359.

    Google Scholar 

  • Poletto, G., Vaiana, G. S., Zombeck, M. V., Krieger, A. S., Thimothy, A. F.: 1975, Solar Phys. 44, 83.

    Google Scholar 

  • Sakurai, T. and Uchida, Y.: 1977, Solar Phys. 52, 397.

    Google Scholar 

  • Schmidt, H. W.: 1964, in AAS-NASA Symp. on the Physics of Solar Flares, NASA SP-50, p. 107.

  • Semel, M.: 1967, Ann. Astrophys. 30, 513.

    Google Scholar 

  • Švestka, Z. and Howard, R.: 1979, Solar Phys. 63, 297.

    Google Scholar 

  • Vorpahl, J.: 1976, Astrophys. J. 205, 368.

    Google Scholar 

Download references

Author information

Author notes

  1. K. Müller

    Present address: Electronic 2000, München, F.R.G.

  2. P. Balz

    Present address: Walzer GmbH, Unterschleißheim, F.R.G.

Authors and Affiliations

  1. Lehrstuhl für Theoretische Astrophysik, Universität Tübingen, F.R.G.

    G. Elwert, K. Müller, L. Thür & P. Balz

Authors
  1. G. Elwert
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. K. Müller
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. L. Thür
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. P. Balz
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Elwert, G., Müller, K., Thür, L. et al. Computation of inner coronal magnetic fields from longitudinal field components on a spherical photosphere. Sol Phys 75, 205–227 (1982). https://doi.org/10.1007/BF00153472

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00153472

Keywords

Search

Navigation