SPT-CL J0546-5345 explained

SPT-CL J0546-5345[1] [2] [3] [4] is one of the most massive galaxy clusters ever found in the early universe. It is thought to be 7 billion light years away. It was discovered at the South Pole Telescope in 2008 by the Sunyaev-Zel'dovich-Effect. The cluster has a redshift of z=1.067. Follow-up studies using the Spitzer, Chandra, and optical telescopes allowed to identify cluster members and to measure the redshift. Using the velocity dispersion, the cluster mass has been estimated to 1015 solar masses.

See also

Notes and References

  1. SPT-CL J0546-5345: A Massive z>1 Galaxy Cluster Selected Via the Sunyaev-Zel'dovich Effect with the South Pole Telescope. M. Brodwin. etal . 2010ApJ...721...90B. The Astrophysical Journal. 2010. 10.1088/0004-637X/721/1/90. 721. 1. 90–97. 1006.5639 . 54988474.
  2. Galaxy Clusters Selected with the Sunyaev-Zel'dovich Effect from 2008 South Pole Telescope Observations. K. Vanderlinde. etal. 2010ApJ...722.1180V. The Astrophysical Journal. 10.1088/0004-637X/722/2/1180. 722. 2010. 2. 1180–1196. 1003.0003 . 119206180.
  3. Optical Redshift and Richness Estimates for Galaxy Clusters Selected with the Sunyaev-Zel'dovich Effect from 2008 South Pole Telescope Observations. F. W. High. etal. 2010ApJ...723.1736H. The Astrophysical Journal. 10.1088/0004-637X/723/2/1736. 723. 2010. 2. 1736–1747. 1003.0005 . 119189086.
  4. X-ray Properties of the First SZE-selected Galaxy Cluster Sample from the South Pole Telescope. K. Andersson. The Astrophysical Journal. 2011. 738. 1. 48. etal. 2011ApJ...738...48A. 1006.3068. 10.1088/0004-637X/738/1/48. 1721.1/96774. 31168807.

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