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Galactic Dynamos and Dynamics

Published online by Cambridge University Press:  19 July 2016

Karl Johan Donner ,
Axel Brandenburg  and
Magnus Thomasson
Karl Johan Donner
Affiliation:
Observatoire de Marseille, 2 Place Le Verrier, F-13248 Marseille Cedex 4, France∗
Axel Brandenburg
Affiliation:
Isaac Newton Institute, 20 Clarkson Road, Cambridge CB3 0EH, UK
Magnus Thomasson
Affiliation:
NORDITA, Blegdamsvej 17, DK-2100 Copenhagen ⊘, Denmark

Abstract

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We discuss some aspects of the interrelationship between the dynamo problem for galaxies and their dynamics. First, we consider the generation of magnetic fields in the presence of fountain flows and galactic winds. Next, we discuss the distortion of a steady magnetic field by tidal effects and other transient spiral features. Finally, we give an expression for the amplitude of density waves generated by large-scale non-axisymmetric fields.

Keywords

Interstellar gas dynamicsInteractions of galaxiesDensity waves
Type
8. Magnetic Fields in Galaxies: Dynamo Theory
Information
Symposium - International Astronomical Union , Volume 157: The Cosmic Dynamo , 1993 , pp. 333 - 337
Copyright
Copyright © Kluwer 1993 

References

Brandenburg, A., Donner, K.J., Moss, D., Shukurov, A., Sokoloff, D.D. and Tuominen, I.: 1992, Astron. Astrophys. 259, 453 Google Scholar
Brandenburg, A., Donner, K.J., Moss, D., Shukurov, A., Sokoloff, D.D. and Tuominen, I.: 1993, Astron. Astrophys. (in press) Google Scholar
Breitschwerdt, D., McKenzie, J.F. and Völk, H.J.: 1991, Astron. Astrophys. 245, 79 Google Scholar
Danly, L., Lockman, F.J., Meade, M.R. and Savage, B.D.: 1992, Astrophys. J. Suppl. 81, 125 Google Scholar
Dettmar, R.-J., Keppel, J.W., Roberts, M.S. and Gallagher, J.S.: 1991, in Bloemen, H., ed(s)., The Interstellar Disc-Halo Connection , Kluwer: Dordrecht, p. 295 Google Scholar
Donner, K.J.: 1979, Ph.D. Thesis, University of Cambridge Google Scholar
Donner, K.J. and Brandenburg, A.: 1990, Astron Astrophys. 240, 289 Google Scholar
Goldreich, P. and Tremaine, S.: 1979, Astrophys. J. 233, 857 Google Scholar
Hummel, E., Beck, R. and Dahlem, M.: 1991a, Astron. Astrophys. 248, 23 Google Scholar
Hummel, E., Dahlem, M., van der Hulst, J.M. and Sukumar, S.: 1991b, Astron. Astrophys. 246, 10 Google Scholar
Krause, M., Beck, R. and Hummel, E.: 1989, Astron. Astrophys. 217, 17 Google Scholar
Moss, D., Brandenburg, A., Donner, K.J. and Thomasson, M.: 1993, this volume Google Scholar
Parker, E.N.: 1971, Astrophys. J. 163, 255 Google Scholar
Rand, R.J., Kulkarni, S.R. and Hester, J.J.: 1990, Astrophys. J. (Letters) 352, L1 Google Scholar
Rand, R.J., Kulkarni, S.R. and Hester, J.J.: 1992, Astrophys. J. 396, 97 Google Scholar
Reynolds, R.J.: 1991, in Bloemen, H., ed(s)., The Interstellar Disc-Halo Connection , Kluwer: Dordrecht, p. 67 CrossRefGoogle Scholar
Rots, A.H.: 1975, Astron. Astrophys. 45, 43 Google Scholar
Ruzmaikin, A., Sokoloff, D. and Shukurov, A.: 1989, Nature 336, 341 CrossRefGoogle Scholar
Shapiro, P.R.: 1991, in Bloemen, H., ed(s)., The Interstellar Disc-Halo Connection , Kluwer: Dordrecht, p. 417 Google Scholar
Sukumar, S. and Allen, R.J.: 1991, Astrophys. J. 382, 100 Google Scholar
Thomasson, M. and Donner, K.J.: 1993, Astron. Astrophys. (in press) Google Scholar
Toomre, A.: 1981, in Fall, S.M. and Lynden-Bell, D., ed(s)., The Dynamics of Normal Galaxies , Cambridge University Press, p. 111 Google Scholar