The Origin and Evolution of \civ Baldwin Effect in QSOs from the Sloan Digital Sky Survey

Yan Xu, Wei-Hao Bian, Qi-Rong Yuan +1

Using a large sample of 26623 quasars with redshifts in the range $1.5\le z\le 5.1$ with \civ $\lambda$1549 Åemission line in Fifth Data Release of the Sloan Digital Sky Survey (SDSS),…