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Cosmology from Cluster SZ and Weak Lensing Data

P. J. Marshall·K. Lancaster·M. P. Hobson·K. J. B. Grainge
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Abstract

Weak gravitational lensing and the Sunyaev-Zel'dovich effect provide complementary information on the composition of clusters of galaxies. Preliminary results from cluster SZ observations with the Very Small Array are presented. A Bayesian approach to combining this data with wide field lensing data is then outlined; this allows the relative probabilities of cluster models of varying complexity to be computed. A simple simulation is used to demonstrate the importance of cluster model selection in cosmological parameter determination.

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P. J. Marshall, K. Lancaster, M. P. Hobson, K. J. B. Grainge. 2003-02-13. Cosmology from Cluster SZ and Weak Lensing Data. https://arxiv.org/abs/astro-ph/0205345

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