The Thermal Gas Trunk of the Centaurus A Northern Middle Lobe

Details The Thermal Gas Trunk of the Centaurus A Northern Middle Lobe The Thermal Gas Trunk of the Centaurus A Northern Middle Lobe

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005xmm..prop..140k&link_type=abstract

XMM-Newton Proposal ID #04036001

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Groups Of Galaxies, Clusters Of Galaxies, Supercluster, Centaurus A Nml, Xmm-Newton Proposal 04036001

Scientific paper

We propose to observe the Northern Middle Lobe (NML) of the nearby (3.4 Mpc) radio galaxy Cen A with XMM-Newton for 40 ks to study the hydrodynamics of buoyant bubbles. A 15' (15 kpc) long X-ray filament along the SE edge of the NML was seen by Einstein. This filament is the thermal gas trunk entrained in the wake of the NML as it rises buoyantly. XMM-Newton and Chandra observations of radio galaxies show that material from galaxy and cluster cores is entrained by the lobes and transported into the halo. The proximity of Cen A permits a detailed study of the entrainment process that is unobservable in any other radio galaxy. We will map the morphology of this emission and constrain temperatures and pressures to 10% in several subregions.

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