IDCS J1426.5+3508: THE MOST MASSIVE GALAXY CLUSTER AT z > 1.5

@article{Brodwin2015IDCSJT,
  title={IDCS J1426.5+3508: THE MOST MASSIVE GALAXY CLUSTER AT z > 1.5},
  author={Mark Brodwin and Michael McDonald and Anthony. H. Gonzalez and S. A. Stanford and Peter Eisenhardt and Daniel K. Stern and Gregory R. Zeimann},
  journal={The Astrophysical Journal},
  year={2015},
  volume={817}
}
We present a deep (100 ks) Chandra observation of IDCS J1426.5+3508, a spectroscopically confirmed, infrared-selected galaxy cluster at z = 1.75. This cluster is the most massive galaxy cluster currently known at z > 1.5, based on existing Sunyaev–Zel’dovich (SZ) and gravitational lensing detections. We confirm this high mass via a variety of X-ray scaling relations, including TX–M, fg–M, YX–M, and LX–M, finding a tight distribution of masses from these different methods, spanning M500 = 2.3–3… 

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