Bayesian analysis of weak gravitational lensing and Sunyaev-Zel'dovich data for six galaxy clusters
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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| Data(s) |
29/10/2013
29/10/2013
2012
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| Resumo |
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. Cambridge University Cambridge University STFC STFC Canadian Space Agency Canadian Space Agency |
| Identificador |
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, MALDEN, v. 419, n. 4, supl. 4, Part 1, pp. 2921-2942, FEB, 2012 0035-8711 http://www.producao.usp.br/handle/BDPI/36127 10.1111/j.1365-2966.2011.19937.x |
| Idioma(s) |
eng |
| Publicador |
WILEY-BLACKWELL MALDEN |
| Relação |
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
| Direitos |
closedAccess Copyright WILEY-BLACKWELL |
| Palavras-Chave | #GRAVITATIONAL LENSING: WEAK #RADIATION MECHANISMS: NON-THERMAL #COSMIC BACKGROUND RADIATION #COSMOLOGY: OBSERVATIONS #GALAXIES: CLUSTERS: GENERAL #ARCMINUTE-MICROKELVIN-IMAGER #PHASE CALIBRATION SOURCES #X-RAY #RADIO-SOURCES #SOURCE EXTRACTION #OEMLER CLUSTER #10C SURVEY #TELESCOPE #MASS #COSMOLOGY #ASTRONOMY & ASTROPHYSICS |
| Tipo |
article original article publishedVersion |
