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The Supply of Magnetic Fields from a cD Galaxy to Intra-Cluster Space

Published online by Cambridge University Press:  25 May 2016

H. Hirashita ,
S. Mineshige ,
K. Shibata  and
R. Matsumoto
H. Hirashita
Affiliation:
Department of Astronomy, Kyoto University, Sakyo-ku, Kyoto 606-01, Japan
S. Mineshige
Affiliation:
Department of Astronomy, Kyoto University, Sakyo-ku, Kyoto 606-01, Japan
K. Shibata
Affiliation:
National Astronomical Observatory, 2-21-1 Osawa, Mitaka, Tokyo 181, Japan
R. Matsumoto
Affiliation:
Department of Physics, Faculty of Science, Chiba University, Inage-ku, Chiba 263, Japan

Extract

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Intra-cluster spaces are filled with intra-cluster medium (ICM), whose typical temperature and density are TICM ~ 107.5 K and nICM ~ 10−3 cm−3, respectively (e.g., Sarazin 1988). Recent Faraday rotation measurements have revealed the existence of magnetic fields in ICM with few − 10 μG (e.g., Ge & Owen 1993). In ICM, the plasma β (the ratio of gas pressure to magnetic pressure) is almost “equipartition” value as follows:

Type
Session 1: Plasma and Fresh Nucleosynthesis Phenomena
Information
Symposium - International Astronomical Union , Volume 188: The Hot Universe , 1998 , pp. 306 - 307
Copyright
Copyright © Kluwer 1998 

References

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