An XMM-Newton Mosaic of the Hot ISM in Centaurus A

Physics

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Groups Of Galaxies, Clusters Of Galaxies, Supercluster, Centaurus A, Centaurus A, Centaurus A, Centaurus A

Scientific paper

We propose a 160 ks observation (4 imes40 ks mosaic) of the large scale gas corona around the nearby radio galaxy and late-stage merger Centaurus A. The Cen A group is the nearest relatively massive group (M_Gsim 10(13) M_odot), and its large scale gaseous halo has not been previously studied because of its proximity. We will measure the temperature, density, and entropy of the gas and characterize its morphology to constrain the dynamics of the merger as well as the interaction between the gas and multiple epochs of nuclear activity to a distance of sim50 kpc from the nucleus. The distribution and dynamics of the gas on scales of tens of kpc has played a key role in determining the morphology of the large scale radio structures.

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