SPT-CL J0546-5345

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

References

  1. ↑ M. Brodwin; et al. (2010). "SPT-CL J0546-5345: A Massive z>1 Galaxy Cluster Selected Via the Sunyaev-Zel'dovich Effect with the South Pole Telescope". The Astrophysical Journal. 721 (1): 90–97. arXiv:1006.5639Freely accessible. Bibcode:2010ApJ...721...90B. doi:10.1088/0004-637X/721/1/90.
  2. ↑ K. Vanderlinde; et al. (2010). "Galaxy Clusters Selected with the Sunyaev-Zel'dovich Effect from 2008 South Pole Telescope Observations". The Astrophysical Journal. 722 (2): 1180–1196. arXiv:1003.0003Freely accessible. Bibcode:2010ApJ...722.1180V. doi:10.1088/0004-637X/722/2/1180.
  3. ↑ F. W. High; et al. (2010). "Optical Redshift and Richness Estimates for Galaxy Clusters Selected with the Sunyaev-Zel'dovich Effect from 2008 South Pole Telescope Observations". The Astrophysical Journal. 723 (2): 1736–1747. arXiv:1003.0005Freely accessible. Bibcode:2010ApJ...723.1736H. doi:10.1088/0004-637X/723/2/1736.
  4. ↑ K. Andersson; et al. "X-ray Properties of the First SZE-selected Galaxy Cluster Sample from the South Pole Telescope". arXiv:1006.3068Freely accessible. Bibcode:2011ApJ...738...48A. doi:10.1088/0004-637X/738/1/48.
Preceded by
XMMU J2235.3-2557		 Most massive
distant (z~>=1)
galaxy cluster
2010 – 2011 		Succeeded by
SPT-CL J2106-5844


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