The X-ray photon index Eddington ratio relation in radio-quiet quasars from XMM-Newton and SDSS

SH. M. Shehata, Baraa Hany, Reham Mostafa

This study presents a comprehensive X-ray spectroscopic analysis of 642 quasars, obtained by cross-matching the XMM-Newton Serendipitous Source Catalog (DR11) with the Sloan Digita…