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XMM-Newton discovery of soft X-ray absorption in the high-z superluminous Blazar RBS 315
We present the analysis and the results of a 20 ks XMM-Newton observation of the extremely X-ray loud ( erg s-1) flat-spectrum radio quasar RBS 315 at a redshift of 2.69. This EPIC observation has allowed us to strongly constrain the slope of the continuum () as well as to …