Artículos de revistas
Bayesian analysis of weak gravitational lensing and Sunyaev-Zel'dovich data for six galaxy clusters
Fecha
2012Registro en:
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, MALDEN, v. 419, n. 4, supl. 4, Part 1, pp. 2921-2942, FEB, 2012
0035-8711
10.1111/j.1365-2966.2011.19937.x
Autor
Hurley-Walker, Natasha
Bridle, Sarah
Cypriano, Eduardo S.
Davies, Matthew L.
Erben, Thomas
Feroz, Farhan
Franzen, Thomas M. O.
Grainge, Keith
Hobson, Michael P.
Lasenby, Anthony
Marshall, P. J.
Olamaie, Malak
Pooley, Guy
Rodriguez-Gonzalvez, Carmen
Saunders, Richard D. E.
Scaife, Anna M. M.
Schammel, Michel P.
Scott, Paul F.
Shimwell, Timothy
Titterington, David
Waldram, Elizabeth
Zwart, Jonathan T. L.
Institución
Resumen
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.