The relationship between the optical Halpha filaments and the X-ray emission in the core of the Perseus cluster

• DOI: 10.1046/j.1365-8711.2003.06856.x
• Publication Date: 2003-09-10T09:48:21Z
• Authors: A. C. Fabian; J. S. Sanders; C. S. Crawford; C. J. Conselice; J. S. Gallagher; R. F. G. Wyse
• Keywords: Intracluster medium; Cooling flow

NGC 1275 in the centre of Perseus cluster galaxies, Abell 426, is surrounded by a spectacular filamentary Hα nebula. Deep Chandra X-ray imaging has revealed that brighter outer filaments are also detected soft X-rays. This can be due to conduction and mixing cold gas with hot, dense intracluster medium. We show correspondence both wavebands draw attention relationship two prominent curved north-west an outer, buoyant radio bubble seen as hole image. There strong resemblance shape disposition behaviour large air rising water. If this correct analogy, then flow laminar around source not turbulent. obtain limit on viscosity gas.