Abstract
Whether galaxy clusters, in addition to a number of radio sources associated with individual cluster members, have an extended radio emitting region designated as cluster halo is in an interesting way related to several questions concerning cluster characteristics:
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i)
do relativistic electrons leak out of active cluster galaxies and accumulate; how do they propagate in the cluster;
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ii)
what is the strength and topology of the intracluster magnetic fields;
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iii)
is there an association between radio-synchrotron and either inverse Compton or free-free X-ray emission;
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iv)
what static thermal pressure helps to confine the discrete extended (head-tail) radio sources in clusters.
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Reference
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Valentijn, E.A., van der Laan, H. (1978). Extended Radio Emission in Clusters of Galaxies: Recent Westerbork Observations. In: Longair, M.S., Einasto, J. (eds) The Large Scale Structure of the Universe. International Astronomical Union / Union Astronomique Internationale, vol 79. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-9843-8_16
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DOI: https://doi.org/10.1007/978-94-009-9843-8_16
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