Solar Physics

, Volume 150, Issue 1–2, pp 325–337 | Cite as

Three-dimensional coronal structures using clark lake observations

  • E. J. Schmahl
  • N. Gopalswamy
  • M. R. Kundu


We have undertaken a study of coronal features observed at meter-decameter wavelengths using the Clark Lake radioheliograph. Among the coronal structures we have studied are the radio manifestations of coronal streamers on the solar disk and above the solar limb. We have analyzed the radio data quantitatively, using ray-tracing models for comparison with the maps. Our study provides information about the streamers' three-dimensional shapes, scales, and density profiles, for comparison with related observations using white-light coronagraphs.


Solar Phys Brightness Temperature Coronal Hole Solar Disk Solar Radius 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Allen, C. W.: 1947,Monthly Notices Roy. Astron. Soc. 107, 426.ADSGoogle Scholar
  2. Bohlin, J. D. and Garrison, L. M.: 1974,Solar Phys. 38, 165.CrossRefADSGoogle Scholar
  3. Gergely, T. E., Gross, B. D., and Kundu, M. R.: 1986,Solar Phys. 99, 323.CrossRefADSGoogle Scholar
  4. Ginzburg, N.: 1964,The Propagation of Electromagnetic Waves in Plasmas, Pergamon Press, London.Google Scholar
  5. Kundu, M. R., Gergely, T. E., Schmahl, E. J., Szabo, A., Loicano, R., Wang, Z., and Howard, R. A.: 1987,Solar Phys. 108, 113.CrossRefADSGoogle Scholar
  6. Melrose, D.: 1980,Plasma Astrophysics, Vol. 1, Gordon and Breach, New York, Ch. 6.Google Scholar
  7. Saito, K.: 1972,Ann. Tokyo Astron. Observatory (Second Series) 13, 93.ADSGoogle Scholar
  8. Sheridan, K. V. and McLean, D. J.: 1985, in D. J. McLean and N. R. Labrum (eds.),Solar Radiophysics, Cambridge University Press, Cambridge, Ch. 17.Google Scholar
  9. Smerd, S. F.: 1950,Australian J. Sci. Res., Ser. A 3, 34.ADSGoogle Scholar
  10. Thejappa, G. and Kundu, M. R.: 1992,Solar Phys. 140, 19.CrossRefADSGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1994

Authors and Affiliations

  • E. J. Schmahl
    • 1
  • N. Gopalswamy
    • 1
  • M. R. Kundu
    • 1
  1. 1.Astronomy ProgramUniversity of MarylandCollege ParkUSA

Personalised recommendations