Accretion Disk Structure and Kinematics of the Broad Line Regions in Selected AGN
Accretion Disk Structure and Kinematics of the Broad Line Regions in Selected AGN
复制标题
选定活动星系核中粗线区域的吸积盘结构和运动学
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
M. Zetzl
中科院分区：
文献类型：
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作者：
W. Kollatschny;M. Zetzl
活动星系核中的宽发射线区与吸积盘的外层相连。这已经通过单个活动星系核的线变率研究以及活动星系核样品的线剖面研究得到了证实。我们只需要通过洛伦兹轮廓的旋转加宽就可以简单地模拟活动星系核中的宽线轮廓。单个发射线属于一个仅具有固定湍流速度的典型洛伦兹轮廓：例如，Hβ为500 km/s，CIV λ1550为3000 km/s。活动星系核宽线区的自转速度为1000 ~ 7000 km/s。
Abstract Broad emission line regions in AGN are connected with the outer layers of accretion disks. This has been shown by means of line variability studies of individual AGN as well as line profile studies of AGN samples. We could model the broad-line profiles in AGN in a simple way only through rotational broadening of Lorentzian profiles. To individual emission lines belongs one typical Lorentz profile only with a fixed turbulence velocity: e.g., 500 km/s for Hβ, 3000 km/s for CIV λ1550. The rotation velocities in the broad line regions of the AGN range from 1000 to 7000 km/s.