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View Full Version : Near IR Cluster observations as Cosmological tools



Jerry
2010-Jul-30, 04:19 PM
The WIRCAM Deep Infrared Cluster Survey I: Groups and Clusters at z ~1.1

http://arxiv.org/abs/1007.5236v1


Our observations suggest that there are perhaps too few clusters at z > 1 compared to predictions using WMAP-7 cosmology. However, the current level of statistical and systematic uncertainties prevent drawing a more secure conclusion. Ultimately, cluster number counts can provide a complimentary and independent method for constraining the cosmological model.

Tough paper, hedgy but intriguing conclusion.