Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 419, Issue 4, Pages 2921-2942Publisher
OXFORD UNIV PRESS
DOI: 10.1111/j.1365-2966.2011.19937.x
Keywords
gravitational lensing: weak; radiation mechanisms: non-thermal; cosmic background radiation; cosmology: observations; galaxies: clusters: general
Categories
Funding
- Cambridge University
- STFC
- Canadian Space Agency
- Science and Technology Facilities Council [ST/J00152X/1, ST/H008586/1, ST/K000225/1, ST/G002916/1] Funding Source: researchfish
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We present an analysis of observations made with the Arcminute Microkelvin Imager (AMI) and the CanadaFranceHawaii Telescope (CFHT) of six galaxy clusters in a redshift range of 0.160.41. The cluster gas is modelled using the SunyaevZeldovich (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 virialization and a gas-fraction prior) and lensing measurements of the total cluster masses out to r200; (ii) perform the first multiple-component weak-lensing analysis of A115; (iii) confirm the unusual separation between the gas and mass components in A1914 and (iv) jointly analyse the SZ and lensing data for the relaxed cluster A611, confirming our use of a simulation-derived masstemperature relation for parametrizing measurements of the SZ effect.
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