论文标题
冠状森林AGN I：发射线区域的物理特性
Coronal Line Forest AGN I: physical properties of the emission-line regions
论文作者
论文摘要
冠状森林活性银河核（CLIF AGN）的特征是强烈的高离子化线，这与大多数AGN中发现的形成对比。在这里，我们进行了多波长分析，旨在理解这些物体狭窄线区域（NLR）的物理过程，如果它们确实是特殊的AGN类别，则它们会揭开它们。通过比较冠状排放线比，我们得出结论，Clif和非clif AGN之间没有差异。我们得出狭窄线区域（NLR）气体的物理状况，并在范围内发现了电子密度$ 3.6 \ times $ 10 $^{2} $ - $ 1.7 \ $ 10 $ 10 $^{4} $ cm $^{ - 3} $，温度为$ 3.7 \ tims $ 10 $ 10 $^{3} $ 6.3} $ 10 $ 10 $ 10^$ 10^$ 10^$ 10^4.3 \ ak^k kers {4.3 $ 10^4机理主要与AGN的光电离。我们建议由物质结合的云主导的NLR，以解释观察到的高电离线光谱。源自恒星速度色散的中央黑洞的质量表明，大多数对象在间隔10 $^{7-8} $ 〜m $ \ odot $中具有值。我们的结果表明，Clif AGN不是AGN的单独类别。在分析的所有光学/近红外发射线属性中，它们代表了AGN类内分布的低/高端的扩展。
Coronal-Line Forest Active Galactic Nuclei (CLiF AGN) are characterized by strong high-ionization lines, which contrast to what is found in most AGNs. Here, we carry out a multiwavelength analysis aimed at understanding the physical processes in the Narrow Line Region (NLR) of these objects and unveiling if they are indeed a special class of AGN. By comparing coronal emission-line ratios we conclude that there are no differences between CLiF and non-CLiF AGNs. We derive physical conditions of the narrow line region (NLR) gas and found electron densities in the range $3.6\times$10$^{2}$ - $1.7\times$10$^{4}$ cm$^{-3}$ and temperatures of $3.7\times$10$^{3}$ - $6.3\times$10$^{4}$ K, suggesting that the ionization mechanism is associated primarily with photoionization by the AGN. We suggest a NLR dominated by matter-bounded clouds to explain the high-ionization line spectrum observed. The mass of the central black hole, derived from the stellar velocity dispersion show that most of the objects have values in the interval 10$^{7-8}$~M$\odot$. Our results imply that CLiF AGN is not a separate category of AGNs. In all optical/near-infrared emission-line properties analyzed, they represent an extension to the low/high ends of the distribution within the AGN class.
