Magnetic Fields in Clusters of Galaxies Obtained Through the Study of Faraday Rotation Measures

Abstract

We are developing a new approach to investigate cluster magnetic field strengths and structures. It is based on the comparison of simulated Rotation Measure and radio halo images, obtained from 3-dimensional multi-scale cluster magnetic fields models, with observations. This approach is applied to A2255 in which wide diffuse radio emissions and Rotation Measure images show the evidence of cluster magnetic fields on both large and small scales.

5 pages; to be published in the Proceedings of the Conference on "Matter and Energy in Clusters of Galaxies" held on April 23th-27th 2002 in Chung-Li, Taiwan; ASP Conf. Series, eds. S. Bowyer & C.-Y. Hwang