The origin of the soft excess in the luminous quasar HE 1029-1401

The enigmatic and intriguing phenomenon of the "soft excess" observed in the X-ray spectra of luminous quasars continues to be a subject of considerable interest and debate in the field of high-energy astrophysics. This study focuses on the quasar HE 1029-1401 (z=0.086, \log(L_{\rm{bol}}/[\rm{erg\,s^{-1}}])= 46.0 \pm 0.2), with a particular emphasis... Show more