Hostname: page-component-84b7d79bbc-rnpqb Total loading time: 0 Render date: 2024-07-27T17:49:18.368Z Has data issue: false hasContentIssue false
  • English
  • Français

Magnetic Fields in Young Galaxies

Published online by Cambridge University Press:  30 March 2016

Åke Nordlund  and
Örnólfur Rögnvaldsson
Åke Nordlund
Affiliation:
Theoretical Astrophysics Center and Nordita, Copenhagen
Örnólfur Rögnvaldsson
Affiliation:
Theoretical Astrophysics Center and Nordita, Copenhagen

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We have studied the fate of initial magnetic fields in the hot halo gas out of which the visible parts of galaxies form, using three-dimensional numerical MHD-experiments. The halo gas undergoes compression by several orders of magnitude in the subsonic cooling flow that forms the cold disk. The magnetic field is carried along and is amplified considerably in the process, reaching μG levels for reasonable values of the initial ratio of magnetic to thermal energy density.

Type
II. Joint Discussions
Information
Highlights of Astronomy , Volume 12: Highlights of Astronomy. As presented at the XXIVth General Assembly of the IAU, 2000 , 2002 , pp. 706 - 708
Copyright
Copyright © Astronomical Society of Pacific 2002

References

Beck, R., Brandenburg, A., Moss, D., Shukurov, A., Sokoloff, D. 1996, ARA&A, 34, 155 Google Scholar
Berkhuijsen, E.M., Horellou, C., Krause, M., Neininger, N., Poezd, A.D., Shukurov, A., Sokoloff, D.D. 1997, A&A, 318, 700 Google Scholar
Chandran, B.D.G., Cowley, S.C., Morris, M. 2000, ApJ, 528, 723 Google Scholar
Chyży, K.T., Beck, R., Kohle, S., Klein, U., Urbanik, M. 2000, A&A, 355, 128 Google Scholar
Colgate, S.A., Li, H. 2000, in IAU Symp. 195: Highly Energetic Physical Processes and Mechanisms for Emission from Astrophysical Plasmas, eds. Martens, P.C.H., Tsuruta, S. & Weber, M.A., 255 Google Scholar
Eilek, J. 1999, in Diffuse Thermal and Relativistic Plasma in Galaxy Clusters, eds. Bohringer, H., Feretti, L. & Schuecker, P., Garching:MPE, 71 Google Scholar
Gudiksen, B. 1999, Master’s Thesis, Copenhagen University Observatory Google Scholar
Howard, A.M., Kulsrud, R.M. 1997, ApJ, 483, 648 CrossRefGoogle Scholar
Kulsrud, R.M. 1999, ARA&A, 37, 37 Google Scholar
Perry, J.J., Watson, A.M., Kronberg, P.P. 1993, ApJ, 406, 407 Google Scholar
Sofue, Y., Fujimoto, M. 1987, PASJ, 39, 843 Google Scholar