The Cluster A3627 -- The Nearest Major Merger

Physics

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Chandra Proposal Id #05800186

Scientific paper

We propose Chandra ACIS-I and XMM-Newton observations of the nearest rich merging cluster A3627, the sixth X-ray brightest cluster. The elongated X-ray morphology and strong temperature gradient indicate a major merger is underway. With z=0.017, A3627 offers an unprecedented opportunity to investigate the dynamics of a major merger. Chandra's resolution is required to study sharp edges which characterize mergers and which are produced by cold fronts or shocks. We will measure the temperature and density across the edges, determine the merger velocity, and map the distribution of heavy elements. By combining X-ray results with observations of radio tails and galaxy velocities, we will investigate the impact of the merger on the hydrodynamics of the cluster gas and on the radio galaxies.

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