Natasha Hurley-Walker, Sarah Bridle, Eduardo S. Cypriano, Matthew L. Davies, Thomas Erben, Farhan Feroz, Thomas M. O. Franzen, Keith Grainge, Michael P. Hobson, Anthony Lasenby, P. J. Marshall, Malak Olamaie, Guy Pooley, Carmen Rodríguez-Gonzálvez, Richard D. E. Saunders, Anna M. M. Scaife, Michel P. Schammel, Paul F. Scott, Timothy Shimwell, David Titterington, Elizabeth Waldram, Jonathan T. L. Zwart
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.
View original:
http://arxiv.org/abs/1101.5912
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