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Enhancement of Galactic Dynamos by Density Waves

  • Makoto Tosa (a1) and Masashi Chiba (a1)

Abstract

We examine effects of density waves on the local galactic αω-dynamo. Oscillations of the magnetic field and the dynamo parameters due to the density wave perturbation irreversibly couple with the dynamo action to enhance the growth of the magnetic fields.

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Copyright

References

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Parker, E.N. 1980, Cosmical Magnetic Fields (Oxford: Clearendon Press).
Roberts, W.W. 1969, Ap.J. , 158,123.
Roberts, W.W., and Yuan, C., 1971, Ap.J , 161, 877.
Ruzumaikin, A.A., Shukurov, A.M., and Sokoloff, D.D. 1988, Magnetic Fields of Galaxies , (Dordrecht: Kluwer Academic Publishers).
Tosa, M., 1973, Publ. Astron. Soc. Japan , 25,191.
Zeldovich, Ya.B.,Ruzumaikin, A.A.,and Sokoloff, D.D. 1983, Magnetic Fields in Astrophysics , (New York: Gordon and Breach).

Enhancement of Galactic Dynamos by Density Waves

  • Makoto Tosa (a1) and Masashi Chiba (a1)

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