X-Raying the Mach Cones of Virgo Cluster Spiral Galaxies

Details X-Raying the Mach Cones of Virgo Cluster Spiral Galaxies X-Raying the Mach Cones of Virgo Cluster Spiral Galaxies

Aug 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011scgg.conf...12e&link_type=abstract

"Structure in Clusters and Groups of Galaxies in the Chandra Era, 2011 Chandra Science Workshop held July 12-14, 2011. Edited by

Computer Science

Scientific paper

The detailed comparison between HI observations and simulations of ram-pressure stripped Virgo Cluster spiral galaxies allows a construction of a 3D view of their orbits within the hot intracluster medium. The velocities and Mach numbers derived provide simple Mach cone geometries for the studied galaxies. With XMM-Newton we searched for hot gas within the Mach cones of selected Virgo Cluster spiral galaxies: NGC 4569, NGC 4388, and NGC 4501. Low-resolution maps show extraplanar diffuse extended X-ray emission. In NGC 4569 the hot gas from a galactic superwind fills the entire Mach cone. Hot gas tails in NGC 4388 and NGC 4501, situated within their Mach cones, are most likely due to the mixing of the stripped galactic ISM and the hot ICM of the Virgo Cluster.

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