Skip to main content
SpringerLink
Log in

Expansion of the solar wind from a two-hole corona

  • Published:
Solar Physics Aims and scope Submit manuscript

Abstract

A one-fluid model is employed to study the global expansion of the solar wind from a two-hole corona, under the assumptions that the holes are confined to polar caps within 30∘ of heliographic colatitude, the flow is steady and axisymmetric, and the geometry of streamlines is prescribed. The boundary conditions are adjusted in such a way that the calculated solar wind properties at 1 AU are in a reasonable agreement with observational results. A series of numerical solutions are obtained, the series produces a maximum terminal speed of 829 km s−1 at the pole. The calculated solar wind speeds are strongly latitude dependent and are positively correlated with local divergence factor of a stream tube. The solutions imply that most plasma properties are highly inhomogeneous at the polar caps. The flow velocity, the temperature, the proton number flux and the conduction heat flux all increase towards the hole center.

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

  • Durney, B. R. and Pneuman, G. W.: 1975, Solar Phys. 40, 461.

    Google Scholar 

  • Hollweg, J. V.: 1978, Rev. Geophys. Space Phys. 16, 689.

    Google Scholar 

  • Holzer, T. W. and Leer, E.: 1980, J. Geophys. Res. 85, 4665.

    Google Scholar 

  • Hundhausem, A. J.: 1977, in J. B. Zirker (ed.), Coronal Holes and High Speed Streams, Colorado Associated University Press, Boulder, p. 225.

    Google Scholar 

  • Kopp, R. A. and Holzer, T. E.: 1976, Solar Phys. 45, 43.

    Google Scholar 

  • Munro, R. and Jackson, B.: 1977, Astrophys. J. 213, 874.

    Google Scholar 

  • Pneuman, G. W.: 1976, J. Geophys. Res. 81, 5049.

    Google Scholar 

  • Steinholson, R. S. and Tandberg-Hanssen, E.: 1977, Solar Phys. 85, 99.

    Google Scholar 

  • Suess, S. T.: 1976, in D. J. Williams (ed.), Physics of Solar Planetary Environments, Am. Geophys. Union.

  • Whang, Y. C.: 1980, J. Geophys. Res. 85, 2285.

    Google Scholar 

  • Whang, Y. C. and Chang, C. C.: 1965, J. Geophys. Res. 70, 4175.

    Google Scholar 

  • Whang, Y. C. and Chien, T. H.: 1978, Astrophys. J. 221, 350.

    Google Scholar 

  • Whang, Y. C. and Chien, T. H.: 1981, J. Geophys. Res. 86, 3263.

    Google Scholar 

  • Yeh, T. and Pneuman, G.: 1977, Solar Phys. 54, 419.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Dept. of Mechanical Engineering, Catholic University of America, 20064, Washington, DC, USA

    Y. C. Whang

Authors
  1. Y. C. Whang
    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

Whang, Y.C. Expansion of the solar wind from a two-hole corona. Sol Phys 88, 343–358 (1983). https://doi.org/10.1007/BF00196198

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00196198

Keywords

Search

Navigation