Advertisement

The Development of Structure in Coronal Magnetic Fields

  • Mitchell A. Berger
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 143)

Abstract

Much of solar and stellar activity arises from the release of stored magnetic energy. This energy can often be associated with the existence of fieldline structures such as shear, twist, and braiding. At what rate does magnetic structure enter a coronal field? This paper discusses the growth of structure due to random photospheric motions. Helicity integrals are used to quantify the complexity of the magnetic field. As a concrete example, the braiding of two fieldlines due to random motions will be discussed.

Keywords

Boundary Motion Coronal Magnetic Field Flux Element Coronal Field Stellar Activity 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Berger, M.A. 1984, Geophys. Astrophys. Fluid Dyn. 30, 79.ADSCrossRefGoogle Scholar
  2. Berger, M.A. 1985, Ap. J. Suppl. 59, 433.ADSCrossRefGoogle Scholar
  3. Berger, M.A. 1986, Geophys. Astrophys. Fluid Dyn. 34, 265.ADSzbMATHCrossRefGoogle Scholar
  4. Berger, M.A. 1987a, J. Physics A, to appear.Google Scholar
  5. Berger, M.A. 1987b, preprint.Google Scholar
  6. Berger, M.A. and G.B. Field 1984, J. Fluid Mech. 147, 133.MathSciNetADSCrossRefGoogle Scholar
  7. Berger, M.A. and P.H. Roberts 1987, Adv. Appl. Prob., to appear.Google Scholar
  8. Boozer, A.H. 1986, J. Plasma Phys. 35, 133.ADSCrossRefGoogle Scholar
  9. Chandrasekhar, S. 1961, ‘Hydrodynamic and Hydromagnetic Stability’, (Oxford: Oxford University Press).zbMATHGoogle Scholar
  10. Finn, J.H. and T.M. Antonsen 1985, Comments Plasma Phys. Contr. Fusion 9, 11.Google Scholar
  11. Heyvaerts, J. and E.R. Priest 1984, Astron. Astrophys. 137, 63.ADSGoogle Scholar
  12. Jensen, T.H. and M.S. Chu 1984, Phys. Fluids 27, 281.CrossRefGoogle Scholar
  13. Moffatt, H.K. 1969, J. Fluid Mech. 35, 117.ADSzbMATHCrossRefGoogle Scholar
  14. Parker, E.N. 1983, Ap. J. 298, 421.Google Scholar
  15. Priest, E.R. 1982, ‘Solar Magnetohydrodynamics’, Reidel.Google Scholar
  16. Roberts, P.H. and H.D. Ursell 1960, Phil. Trans. Roy. Soc. London A252, 317.MathSciNetADSGoogle Scholar
  17. Rudnick, J. and Y. Hu, J. Physics A. 20, 4419.Google Scholar
  18. Sturrock, P.A. and Y. Uchida 1981, Ap. J. 246, 331.ADSCrossRefGoogle Scholar
  19. Taylor, J.B. 1986, Rev. Mod. Phys. 58, 741.ADSCrossRefGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1988

Authors and Affiliations

  • Mitchell A. Berger
    • 1
  1. 1.Department of Mathematical SciencesUniversity of St AndrewsFifeScotland

Personalised recommendations