Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hia....13..331d&link_type=abstract
In: Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 J
Astronomy and Astrophysics
Astronomy
Galaxy Clusters
Scientific paper
We present new radio observations at 0.35 GHz of the Perseus cluster taken in Dec 2002 with the new wideband correlator at the WSRT. The data have been combined with existing extremely high dynamic range observations at 1.4 GHz to analyse the diffuse synchrotron emission from the existing radio galaxy population the halo from NGC1275 and its cooling flow and the intra-cluster medium extending to 1 Mpc radius. The relation between the radio and X-ray morphologies can be compared in detail. We have also detected widespread polarized emission which we interpret as due to a combination of Galactic foreground emission and Thomson scattered emission from the central radio source off the hot cluster gas. Our wideband data furthermore allow us to study the radial dependence of the cluster and foreground Rotation Measure.
Brentjens Michiel A.
Bruyn Ger de
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