Edges, Bubbles And Shocks In The Dominant Elliptical Galaxy Ngc5846

Details Edges, Bubbles And Shocks In The Dominant Elliptical Galaxy Ngc5846 Edges, Bubbles And Shocks In The Dominant Elliptical Galaxy Ngc5846

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21822831m&link_type=abstract

American Astronomical Society, AAS Meeting #218, #228.31; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

NGC 5846, one of the best examples of a dominant elliptical galaxy in a nearby galaxy group, gives us the opportunity for a simultaneous study of the dynamics of non-hydrostatic gas motions induced by galaxy interactions, AGN activity and bubble evolution. We use a combined 120 ks Chandra exposure to analyze the X-ray edges and cavities produced by these dynamical processes. From analysis of the edges we constrain the orbit of the perturbing interaction and the gas velocities. We use the properties of the observed cavities to constrain the AGN outburst duty cycle and outburst energetics. We argue that the properties of the inner bubbles are consistent with the recent passage of a shock. We also present the first observation of ram pressure stripping of a compact elliptical galaxy, NGC 5846A, during its supersonic infall towards the dominant group elliptical galaxy NGC 5846.

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