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    Bayesian analysis of weak gravitational lensing and Sunyaev-Zel'dovich data for six galaxy clusters

    245645_245645.pdf (14.55Mb)
    Access Status
    Open access
    Authors
    Hurley-Walker, Natasha
    Bridle, S.
    Cypriano, E.
    Davies, M.
    Erben, T.
    Feroz, F.
    Franzen, Thomas
    Grainge, K.
    Hobson, M.
    Lasenby, A.
    Marshall, P.
    Olamaie, M.
    Pooley, G.
    Rodriguez-Gonzalvez, C.
    Saunders, R.
    Scaife, A.
    Schammel, M.
    Scott, P.
    Shimwell, T.
    Titterington, D.
    Waldram, E.
    Zwart, J.
    Date
    2012
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Hurley-Walker, N. and Bridle, S. and Cypriano, E. and Davies, M. and Erben, T. and Feroz, F. and Franzen, T. et al. 2012. Bayesian analysis of weak gravitational lensing and Sunyaev-Zel'dovich data for six galaxy clusters. Monthly Notices of the Royal Astronomical Society. 419 (4): pp. 2921-2942.
    Source Title
    Monthly Notices of the Royal Astronomical Society
    DOI
    10.1111/j.1365-2966.2011.19937.x
    ISSN
    0035-8711
    School
    Curtin Institute of Radio Astronomy (Physics)
    Remarks

    Copyright © 2012 The Authors. Published by Oxford University Press on behalf of Royal Astronomical Society. All rights reserved.

    URI
    http://hdl.handle.net/20.500.11937/38029
    Collection
    • Curtin Research Publications
    Abstract

    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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