Xmm-newton Observations of Evolution of Cluster X-ray Scaling Relations At

We present a spatially-resolved analysis of the temperature and gas density profiles of galaxy clusters at z = 0.4 − 0.7 observed with XMM-Newton. These data are used to derive the total cluster mass within the radius r500 without assuming isothermality, and also to measure the average temperature and total X-ray luminosity excluding the cooling cores. We derive the high-redshift M −T and L−T relations and compare them with the local measurements. The high-redshift L − T relation has low scatter and evolves as L ∝ (1+z) for a fixed T , in agreement with several previous Chandra and XMM-Newton studies (Vikhlinin et al., Lumb et al., and Maughan et al.). The observed evolution of the M − T relation follows M500 ∝ E(z) , where we measure α = 0.88± 0.23. This is in agreement with predictions of the self-similar theory, α = 1. Subject headings: galaxies: clusters: general — surveys — X-rays: galaxies