理工宽吸收线类星体物理研究

宽吸收线类星体物理研究 宽吸收线类星体物理

宽吸收线类星体物理研究 宽吸收线类星体物理研究是小柯论文网通过网络搜集, 并由本站工作人员整理后发布的,宽吸收线类星体物理研究是篇质量较高的学术论文,供本 站访问者学习和学术交流参考之用,不可用于其他商业目的,宽吸收线类星体物理研究的论 文版权归原作者所有,因网络整理,有些文章作者不详,敬请谅解,如需转摘,请注明出处 小柯论文网,如果此论文无法满足您的论文要求,您可以申请本站帮您代写论文,以下是正 文。 摘要现在普遍相信类星体的反馈会调节寄主星系形成的进程,但其中具体的物理过程 .. 依然是个谜类星体的外流是一个重要的候选者为了确定外流的重要性,中国科学技术大学 :(1) 天体物理中心开展了宽吸收线类星体的一系列研究,取得了一些进展宽吸收线区的紫外 2 吸收物质的柱密度比原来预计高出个量级,低电离吸收线形成于饱和的高电离吸收线区; 2 ()射电宁静的宽吸收类星体吸收物质主要在赤道面,并且不同的源吸收物质分布情况很 3 不相同,而在射电强的类星体中,赤道和极向外流都是可能的;()共振散射线偏振表明, . 外流物质携带角动量 , 关键词类星体吸收线 The physics of broad absorption line quasars WANG Ting\|Gui (Center for Astrophysics ,University of Science and Technology of China, Hefei, China) AbstractQuasar feedback is considered acrucial process in galaxy formation and evolution; however, details of the physical process remain amystery. Quasar outflow is one possible process. To assess the importance of quasar outflow we have performed a series of studies on broad absorption line (BAL) quasars, and have obtained the following results. 1The UV absorption column density is an order of magnitude higher than () previously believed, and low ionization BALs are formed in the high ionization zone. (2) In radio\|quiet BAL quasars, the outflow is mainly confined to the equatorial directionwhile in radio\|loud ones both equatorial and polar outflows are possible. (3) The polarization of resonantly scattered lines suggests that the outflow carries large angular momentum. Keywordsquasars, absorption lines  1 引言 一些星系中心的超大质量黑洞吸积周围的气体,气体在下落到黑洞过程中将巨大的引力

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