We present an analysis of observations made with the Arcminute Microkelvin Imager (AMI) and the Canada-France-Hawaii Telescope (CFHT) of six galaxy clusters in a redshift range of 0.16--0.41. The cluster gas is modelled using the Sunyaev--Zel'dovich (SZ) data provided by AMI, while the total mass is modelled using the lensing data from the CFHT. In this paper, we: i) find very good agreement between SZ measurements (assuming large-scale virialisation and a gas-fraction prior) and lensing measurements of the total cluster masses out to r_200; ii) perform the first multiple-component weak-lensing analysis of A115; iii) confirm the unusual separation between the gas and mass components in A1914; iv) jointly analyse the SZ and lensing data for the relaxed cluster A611, confirming our use of a simulation-derived mass-temperature relation for parameterizing measurements of the SZ effect.
@article{arxiv.1101.5912,
title = {Bayesian analysis of weak gravitational lensing and Sunyaev-Zel'dovich data for six galaxy clusters},
author = {Natasha Hurley-Walker and Sarah Bridle and Eduardo S. Cypriano and Matthew L. Davies and Thomas Erben and Farhan Feroz and Thomas M. O. Franzen and Keith Grainge and Michael P. Hobson and Anthony Lasenby and P. J. Marshall and Malak Olamaie and Guy Pooley and Carmen Rodríguez-Gonzálvez and Richard D. E. Saunders and Anna M. M. Scaife and Michel P. Schammel and Paul F. Scott and Timothy Shimwell and David Titterington and Elizabeth Waldram and Jonathan T. L. Zwart},
journal= {arXiv preprint arXiv:1101.5912},
year = {2015}
}
Comments
22 pages, 12 figures, 12 tables, published by MNRAS