The luminosity dependence of quasar UV continuum slope: dust extinction scenario

Xiaoyi Xie, Zhengyi Shao, Shiyin Shen +2

We investigate the UV continuum slope $\alpha$ of a large quasar sample from SDSS DR7. By using specific continuum windows, we build two samples at lower ($0.71<z<1.19$) and higher ($1.…