【摘要】 类星体光谱中有大量的吸收线 ,它们或者产生于与类星体本身有联系的气体云 ,或者产生于类星体和观测者之间的吸收系统。因此 ,类星体吸收线是强有力的宇宙探针。对类星体吸收线的研究将有助于我们了解星系的形成和演化。本文介绍了类星体吸收线的性质并评述了近年来类星体吸收研究的最新进展。更多还原

【Abstract】 There are a lot of absorption lines in spectra of QSOs.They are produced in clouds related to QSOs themselves or intervening systems.Therefore,quasar absorption lines are important cosmological probes of formation and evolution of galaxies.The Properties of quasar absorption lines are introduced and the new progress in study of QSO absorption lines is reviewed.更多还原