| Title: |
Sunyaev-Zel'dovich observations of LoCuSS clusters with the Arcminute Microkelvin Imager: moderate X-ray luminosity sample |
| Authors: |
Rodriguez-Gonzalvez, Carmen, Shimwell, Timothy W., Davies, Matthew L., Feroz, Farhan, Franzen, Thomas M. O., Grainge, Keith J. B., Hobson, Michael P., Hurley-Walker, Natasha, Lasenby, Anthony N., Olamaie, Malak, Pooley, Guy, Saunders, Richard D. E., Scaife, Anna M. M., Schammel, Michel P., Scott, Paul F., Titterington, David J., Waldram, Elizabeth M. |
| Publication Year: |
2011 |
| Collection: |
Astrophysics |
| Subject Terms: |
Astrophysics - Cosmology and Nongalactic Astrophysics |
| More Details: |
We present 16-GHz observations using the Arcminute Microkelvin Imager (AMI) of 11 clusters with 7 x 10^{37}W < L_X < 11 x 10^{37}W (h_{50}=1.0) selected from the Local Cluster Substructure Survey (LoCuSS) and compare them to X-ray data. We use a fast, Bayesian cluster analysis to explore the high-dimensional parameter space of the cluster-plus-sources model and obtain robust cluster parameter estimates in the presence of radio point sources, receiver noise and primordial CMB anisotropy. Our analysis fits a spherical, isothermal beta-model to our data and assumes the cluster follows the theoretical mass-temperature relation. Large-scale cluster parameters internal to r_{500} are derived under the assumption of hydrostatic equilibrium. Posterior distributions for the large-scale parameters of 8 of our clusters are given; SZ effects towards Abell 1704 and Zw0857.9+2107 were not detected and our spherical beta-profile was found to be an inadequate fit to the decrement on our map for Abell 2409.
Comment: 17 pages, 12 figures, 4 tables This paper has been withdrawn by the authors due to major changes |
| Document Type: |
Working Paper |
| Access URL: |
http://arxiv.org/abs/1101.5589 |
| Accession Number: |
edsarx.1101.5589 |
| Database: |
arXiv |
