Measuring the Scatter of the Mass-Richness Relation in Galaxy Clusters in Photometric Imaging Surveys by Means of Their Correlation Function
The knowledge of the scatter in the mass-observable relation is a key ingredient for a cosmological analysis based on galaxy clusters in a photometric survey. We demonstrate here how the linear bias measured in the correlation function for clusters can be used to determine the value of the scatter. The new method is tested in simulations of a 5.000 square degrees optical survey up to z~1, similar to the ongoing Dark Energy Survey. The results indicate that the scatter can be measured with a precision of 5% using this technique.
- Publication Date:
- OSTI Identifier:
- Report Number(s):
- arXiv:1512.01468; FERMILAB-PUB-15-615-AE
- DOE Contract Number:
- Resource Type:
- Journal Article
- Resource Relation:
- Journal Name: Astrophys.J.
- Research Org:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Org:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- Country of Publication:
- United States
- 79 ASTRONOMY AND ASTROPHYSICS
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