Simulating mock catalogues to provide accurate cluster selection functions.
Abstract
Galaxy clusters are one of the main probes to constrain dark energy parameters in the present theories of formation and evolution of the Universe. Many present and future surveys are expected to provide large number of clusters ranging both a wide range of mass and redshift. In this summary, we introduce recent results on present galaxy cluster and groups samples extracted from datasets with different properties. In particular, we demonstrate that datasets with similar depth are able to detect clusters and groups with high reliably down to lower masses if the photometric redshift resolution is higher. We also present preliminary work performed on predicting the cluster selection function for clusters in next generation surveys. We first describe the main mock catalogue, transformed to make the photometry more realistic for each different survey and we finally report some results regarding the photometric redshift accuracy obtained for the next-generation surveys considered and their corresponding cluster selection functions obtained.
- Publication:
-
SF2A-2014: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics
- Pub Date:
- December 2014
- Bibcode:
- 2014sf2a.conf..299A
- Keywords:
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- Galaxies: clusters: general;
- Galaxies: groups: general;
- Cosmology;
- Cosmology: cosmological parameters;
- Cosmology: observations;
- Cosmology: dark matter;
- Cosmology: dark energy;
- Cosmology: large-scale structure of Universe;
- Galaxies: evolution