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

被引：10

作者：

Hurley-Walker, Natasha ^{[1
,2
]}

Bridle, Sarah ^{[3
]}

Cypriano, Eduardo S. ^{[4
]}

Davies, Matthew L. ^{[1
]}

Erben, Thomas ^{[5
]}

Feroz, Farhan ^{[1
]}

Franzen, Thomas M. O. ^{[6
]}

Grainge, Keith ^{[1
,7
]}

Hobson, Michael P. ^{[1
]}

Lasenby, Anthony ^{[1
,7
]}

Marshall, P. J. ^{[8
]}

Olamaie, Malak ^{[1
]}

Pooley, Guy ^{[1
]}

Rodriguez-Gonzalvez, Carmen ^{[1
]}

Saunders, Richard D. E. ^{[1
,7
]}

Scaife, Anna M. M. ^{[9
]}

Schammel, Michel P. ^{[1
]}

Scott, Paul F. ^{[1
]}

Shimwell, Timothy ^{[1
]}

Titterington, David ^{[1
]}

Waldram, Elizabeth ^{[1
]}

Zwart, Jonathan T. L. ^{[10
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Astrophys Grp, Cambridge CB3 0HE, England

[2] Curtin Inst Radio Astron, Int Ctr Radio Astron Res, Perth, WA 6845, Australia

[3] UCL, Dept Phys & Astron, London WC1E 6BT, England

[4] Univ Sao Paulo, Dept Astron, Inst Astron Geofis & Ciencias Atmosfer, BR-05508900 Sao Paulo, Brazil

[5] Argelander Inst Astron Hugel, D-53121 Bonn, Germany

[6] Australia Telescope Natl Facil, CSIRO Astron & Space Sci, Epping, NSW 1710, Australia

[7] Kavli Inst Cosmol Cambridge, Cambridge CB3 0HA, England

[8] Oxford Astrophys, Dept Phys, Oxford OX1 3RH, England

[9] Dublin Inst Adv Studies, Dublin 2, Ireland

[10] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2012年 / 419卷 / 04期

关键词：

gravitational lensing: weak; radiation mechanisms: non-thermal; cosmic background radiation; cosmology: observations; galaxies: clusters: general; PHASE CALIBRATION SOURCES; X-RAY; RADIO-SOURCES; 10C SURVEY; MASS; COSMOLOGY; DISTRIBUTIONS; POPULATION; EFFICIENT; BUTCHER;

D O I：

10.1111/j.1365-2966.2011.19937.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：2921 / 2942

页数：22

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