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arXiv · 1208.0606

The Canadian Cluster Comparison Project: weak lensing masses and SZ scaling relations

Henk Hoekstra·Andisheh Mahdavi·Arif Babul·Chris Bildfell
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Abstract

The Canadian Cluster Comparison Project is a comprehensive multi-wavelength survey targeting 50 massive X-ray selected clusters of galaxies to examine baryonic tracers of cluster mass and to probe the cluster-to-cluster variation in the thermal properties of the hot intracluster medium. In this paper we present the weak lensing masses, based on the analysis of deep wide-field imaging data obtained using the Canada-France-Hawaii-Telescope. The final sample includes two additional clusters that were located in the field-of-view. We take these masses as our reference for the comparison of cluster properties at other wavelengths. In this paper we limit the comparison to published measurements of the Sunyaev-Zel'dovich effect. We find that this signal correlates well with the projected lensing mass, with an intrinsic scatter of 12\pm5% at ~r_2500, demonstrating it is an excellent proxy for cluster mass.

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Henk Hoekstra, Andisheh Mahdavi, Arif Babul, Chris Bildfell. 2012-08-02. The Canadian Cluster Comparison Project: weak lensing masses and SZ scaling relations. https://doi.org/10.1111/j.1365-2966.2012.22072.x

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