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Centro de Astrofísica da Universidade do Porto

The XMM Cluster Survey: Predicted overlap with the Planck Cluster Catalogue

P. T. P. Viana, A. C. da Silva, E. P. G. Ramos, A. Liddle, E. Lloyd-Davies, A. K. Romer, S. T. Kay, C. A. Collins, M. Hilton, M. Hosmer, B. Hoyle, J. A. Mayers, N. Mehrtens, C. J. Miller, M. Sahlén, S. A. Stanford, J. P. Stott

Abstract
We present a list of 15 clusters of galaxies, serendipitously detected by the XMM Cluster Survey (XCS), that have a high probability of detection by the Planck Surveyor satellite. Three of them already appear in the Planck Early Sunyaev–Zel’dovich (ESZ) catalogue. The estimation of the Planck detection probability assumes the flat ΛCDM cosmology most compatible with WMAP-7 data. It takes into account the XCS selection function and Planck sensitivity, as well as the covariance of the cluster X-ray luminosity, temperature, and integrated comptonization parameter, as a function of cluster mass and redshift, determined by the Millennium Gas Simulations. We also characterise the properties of the galaxy clusters in the final data release of the XCS that we expect Planck will have detected by the end of its extended mission. Finally, we briefly discuss possible joint applications of the XCS and Planck data.

Keywords
galaxies: clusters - surveys

Monthly Notices of the Royal Astronomical Society
Volume 422, Page 1007
May 2012

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