Spectral & environment properties of z~2 QSO pairs

We present the first results from our survey of intervening and proximate Lyman limit systems (LLSs) at z~2.0-2.5 using the Wide Field Camera 3 on board the Hubble Space...本研究展示了我们借助哈勃空间望远镜搭载的宽场相机3（Wide Field Camera 3），对红移z≈2.0~2.5区间内的居间莱曼极限系统（Lyman limit systems, LLSs）与近距莱曼极限系统开展巡天的首批观测结果。