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

报 告 人：沈世银 研究员
单 位：上海天文台
时 间：2016年04月13日（周三） 14：30
地 点：厦门大学海韵园物理机电航空大楼573
报告摘要： 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.