论文标题
对10种类星体中病毒因子的个体估计：对宽线区域运动学的影响
Individual Estimates of the Virial Factor in 10 Quasars: Implications on the Kinematics of the Broad Line Region
论文作者
论文摘要
假设Fe III $λλ$ 2039-2113红移的引力起源，并使用基于微透镜的估计估算了发射此功能的区域的大小，我们获得了10个类星体的病毒因子的单个测量值。 Balmer线的平均值，$ \ langle f_ {hβ} \ rangle = {\ bf 0.43 \ pm 0.20} $和$ \ langle f_ {hα} \ rangle = {\ bf 0.50 \ bf 0.50 \ pm 0.24} $，与以前的研究相当于对象的结果。在MG II的情况下，$ f_ {mg ii} \ sim {\ bf 0.44} $也可以接受$ f_ {mg ii} \ sim {\ bf 0.44} $，也可以接受对发射区域的大小合理的缩放。 $ cdf（f）$的累积直方图的建模表明，各向同性和圆柱运动之间的比值相对{相对}的高值，$ a \ sim {\ sim {\ bf 0.4} -0.7 $。相反，我们发现与Fe III $λλ$ 2039-2113混合物相关的病毒因子的值很大，$ f_ {feIII} = 14.3 \ pm2.4 $，如果此功能来自呈现的近乎面对面的结构，则可以解释，类似于收获磁盘。
Assuming a gravitational origin for the Fe III$λλ$2039-2113 redshift and using microlensing based estimates of the size of the region emitting this feature, we obtain individual measurements of the virial factor, $f$, in 10 quasars. The average values for the Balmer lines, $\langle f_{Hβ}\rangle={\bf 0.43\pm 0.20}$ and $\langle f_{Hα}\rangle={\bf 0.50\pm 0.24}$, are in good agreement with the results of previous studies for objects with lines of comparable widths. In the case of Mg II, consistent results, $f_{Mg II} \sim {\bf 0.44}$, can be also obtained accepting a reasonable scaling for the size of the emitting region. The modeling of the cumulative histograms of individual measurements, $CDF(f)$, indicates a {relatively} high value for the ratio between isotropic and cylindrical motions, $a\sim {\bf 0.4}-0.7$. On the contrary, we find very large values of the virial factor associated to the Fe III$λλ$2039-2113 blend, $f_{FeIII}=14.3\pm2.4$, which can be explained if this feature arises from a flattened nearly face-on structure, similar to the accretion disk.
