Title：The redshift and luminosity dependence of quasar UV-optical continuum slope:  dust scenario

Speaker：Shiyin Shen, Research Fellow
Unit：Shanghai Astronomical Observatory
Time：2016.04.13（Wednesday） 14:30
Place：Physics Building 573, Haiyun Campus, Xiamen University
Abstract： In general, quasars have very similar UV-optical continuum.  In detail, quasar continuum shows  dependence on both luminosity and redshift. In this talk, I would like to introduce a scenario that both the luminosity and redshift dependence of the quasar UV-optical continuum slope are caused by dust. In specific, the `intrinsic dust' of quasars causes the luminosity dependence, whereas the the dust along the line of sight, i.e. cosmic dust, is the reason of the apparent redshift dependence.