A cold front in the galaxy cluster A3667: Hydrodynamics, heat conduction, and magnetic field in the intergalactic medium

Chandra observations of the galaxy cluster A3667 are analyzed. The X-ray data strongly suggest that there is a giant cloud of cold plasma separated by a sharp boundary (cold front) from the hotter intergalactic medium. Analysis of the cold-front properties allows one to study a number of physical processes in the intergalactic medium: large-scale gas motions, transport processes, and magnetic-field structure and strength. (C) 2002 MAIK Nauka/Interperiodica.