The Insignificance of Global Reheating in the A1068 Cluster: X-Ray Analysis

  title={The Insignificance of Global Reheating in the A1068 Cluster: X-Ray Analysis},
  author={Michael W. Wise and Brian R. McNamara and Stephen S. Murray},
  journal={The Astrophysical Journal},
We report on a Chandra observation of the massive, medium redshift (z = 0.1386) cooling flow cluster A1068. We detect a clear temperature gradient in the X-ray-emitting gas from kT ~ 5 keV in the outer part of the cluster down to roughly 2 keV in the core and a striking increase in the metallicity of the gas toward the cluster center. The total spectrum from the cluster can be fitted by a cooling flow model with a total mass deposition rate of ~150 M☉ yr-1. Within the core (r < 30 kpc), the… 
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