188 CIV BAL QSOs from SDSS DR7

The variability of broad absorption lines (BALs) is investigated for a sample of 188 BAL quasars (QSOs) (z>1.7) with at least two epoch observations from the Sloan Digital...

针对188个红移z>1.7、至少具备两次观测历元且源自斯隆数字巡天（Sloan Digital）的宽吸收线类星体（Quasars，QSOs）样本，本研究对宽吸收线（Broad Absorption Lines，BALs）的变异性进行了探究。