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Magnetic Field Amplification and Intergalactic Plasma Heating through Magnetic Twist Injection from Rotating Galaxies

Published online by Cambridge University Press:  25 May 2016

R. Matsumoto ,
A. Valinia ,
T. Tajima ,
S. Mineshige  and
K. Shibata
R. Matsumoto
Affiliation:
Department of Physics, Faculty of Science, Chiba University, 1-33 Yayoi-Cho, Inage-Ku, Chiba 263, Japan
A. Valinia
Affiliation:
Laboratory for High Energy Astrophysics, NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA
T. Tajima
Affiliation:
Institute for Fusion Studies, the University of Texas at Austin, Austin, TX 78712, USA
S. Mineshige
Affiliation:
Department of Astronomy, Kyoto University, Sakyo-ku, Kyoto 606-01, Japan
K. Shibata
Affiliation:
National Astronomical Observatory, Mitaka, Tokyo 181, Japan

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We propose a mechanism of amplification of magnetic fields and plasma heating in clusters of galaxies. Recent observations indicate the existence of ~ μG magnetic fields in clusters of galaxies (e.g., Kronberg 1994). There should be some mechanism which locally amplify magnetic fields. In clusters of galaxies, individual motions of galaxies may create locally strong field region by stretching and tangling the magnetic fields threading the galaxies. Magnetic reconnection taking place in the tangled magnetic fields may convert the kinetic energy of the galaxy motion into the inter-galactic plasma heating (Makishima 1996).

Type
Session 1: Plasma and Fresh Nucleosynthesis Phenomena
Information
Symposium - International Astronomical Union , Volume 188: The Hot Universe , 1998 , pp. 315 - 316
Copyright
Copyright © Kluwer 1998 

References

Kronberg, P.P. (1994), Rep. Prog. Phys., 57, 325.CrossRefGoogle Scholar
Makishima, K. (1996), in Imaging and Spectroscopy of Cosmic Hot Plasmas, eds. Makino, F. and Inoue, H., Universal Academy Press, Tokyo, p.137.Google Scholar