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Cosmic magnetic fields in galaxies, groups and clusters

Published online by Cambridge University Press:  01 November 2008

Joern Geisbuesch  and
Paul Alexander
Joern Geisbuesch
Affiliation:
Astrophysics Group, University of Cambridge, Cambridge, CB3 0HE, UK email: joern@mrao.cam.ac.uk
Paul Alexander
Affiliation:
Astrophysics Group, University of Cambridge, Cambridge, CB3 0HE, UK email: joern@mrao.cam.ac.uk
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Abstract

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The distribution of the Faraday depth induced by galaxies, groups and clusters on a patch of sky is investigated. For instance, we utilise a halo model approach to obtain synthetic Faraday skies. Moreover, our modelling includes cluster physical as well as cosmological aspects. A SKA sky survey will provide a large sample of rotation measures of polarised sources. Hence, we examine to what extent statistics of rotation measures of these sources can yield information about cosmic magnetic fields and cosmology.

Keywords

Galaxies: clusters: general – galaxies: magnetic fields – magnetic fields – radio continuum: galaxies – polarization – methods: data analysis
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S259: Cosmic Magnetic Fields: From Planets, to Stars and Galaxies , November 2008 , pp. 569 - 570
Copyright
Copyright © International Astronomical Union 2009

References

Geisbuesch, J. & Alexander, P. 2009, IAU S259 - Cosmic Magnetic Fields: From Planets, to Stars and Galaxies, this volumeGoogle Scholar
Kronberg, P. P., Bernet, M. L., Miniati, F. et al. 2008, ApJ 676, 70CrossRefGoogle Scholar
Murgia, M., Govoni, F., Feretti, L. et al. 2004, A&A 424, 429Google Scholar