Sloshing, Stripping, Bubbles and Shocks in the NGC 5846 Galaxy Group

Details Sloshing, Stripping, Bubbles and Shocks in the NGC 5846 Galaxy Group Sloshing, Stripping, Bubbles and Shocks in the NGC 5846 Galaxy Group

Aug 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011scgg.conf...31m&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

Physics

Scientific paper

The NGC 5846 galaxy group shares many properties with highly evolved 'fossil' groups, yet its ICM is far from relaxed. We use a 120 ks Chandra exposure to study bulk gas motions, induced by galaxy interactions, and `bubble' evolution, driven by AGN activity in the dominant galaxy NGC 5846. From analyses of X-ray surface brightness, gas density and temperatures, we find features consistent with `sloshing', and constrain gas velocities and the orbit of the perturber. > From X-ray bubbles, we estimate the duty cycle and outburst energies for NGC 5846's AGN. Knotty substructure is found in the inner bubbles. We argue that the properties of the inner bubbles are consistent with the recent passage of a shock. We also show gas stripping from a cE galaxy NGC 5846A, as it plummets towards NGC 5846.

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