A Magnified X-ray View of the Most Distant Lensed Quasar at z=6.5

High redshift quasars probe the formation and evolution of supermassive blackholes (SMBHs) at early cosmic time. Here we propose XMMNewton observations ofJ0439 at z 6.5, the most distant lensed quasar known to date. Aided by amagnification factor of virgul50, it is the brightest quasar in optical and FIR atz>6 and unique target for the study of SMBH accretion at the reionization era,with typical BH mass but extremely high anticipated Xray flux. With only 90 ksnet exposure, a high quality Xray spectrum with total counts of virgul8000 countscan be obtained, providing a high S/N Xray view of an early SMBH for the firsttime. We will search for the ultrafast outflows and measure the Xrayluminosity, spectral slope, coronal properties and opticaltoXray SED of this quasar. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]