Mach cones around Virgo Cluster spiral galaxies

The detailed comparison between observations and simulations of ram pressurestripped spiral galaxies in the Virgo cluster has led to a three dimensionalview of the galaxy orbits within the hot intracluster medium. The 3D velocitiesand Mach numbers derived from these simulations can be used to derive simpleMach cone geometries. We see indications of these Mach cones in the largescaleXray emission of existing XMMNewton data. However, the data are not deepenough to establish a clear cone structure. Therefore, we propose highsensitivity Xray observations of selected Virgo Cluster spiral galaxies. Theobservations of NGC,4388 were approved in AO9 with a Cpriority. However, thishas not been scheduled yet and there is no guarantee it will be done. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]