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arXiv 0811.3204astro-ph
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AGN中冕线发射区的位置和运动学

The location and kinematics of the coronal-line emitting regions in AGN

J. R. Mullaney, M. J. Ward, C. Done, G. J. Ferland, N. Schurch

摘要:

我们使用的光电离代码多云,以确定的位置和运动学的光学禁止,高电离线(以下简称FHIL)发射气体的窄线塞弗特1星系方舟564。我们的模型的结果进行比较,这些发射线的观测特性,以产生一个物理模型,用于解释运动学和这种气体的来源。该模型的主要特点是FHIL发射气体从假定的尘埃环面发射,并迅速加速到几百km/s的终极速度。携带铁的颗粒在初始加速过程中被破坏。这个速度是由这个超级爱丁顿源中的辐射力和重力之间的平衡来维持的。最终,流出物在大半径处由于宿主星系的引力和与宿主星系的相互作用而减慢。在这个模型中,FHIL辐射跟踪活动星系核和影响区之间的过渡。

英文摘要:

We use the photoionisation code Cloudy to determine both the location and the kinematics of the optical forbidden, high ionisation line (hereafter, FHIL) emitting gas in the narrow line Seyfert 1 galaxy Ark 564. The results of our models are compared with the observed properties of these emission lines to produce a physical model that is used to explain both the kinematics and the source of this gas. The main features of this model are that the FHIL emitting gas is launched from the putative dusty torus and is quickly accelerated to its terminal velocity of a few hundred km/s. Iron-carrying grains are destroyed during this initial acceleration. This velocity is maintained by a balance between radiative forces and gravity in this super-Eddington source. Eventually the outflow is slowed at large radii by the gravitational forces of and interactions with the host galaxy. In this model, FHIL emission traces the transition between the AGN and bulge zones of influence.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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