标题： 确定近邻塞弗特星系窄线区外流的范围、几何结构和运动学 显示英文标题

标题： Determining the Extents, Geometries, and Kinematics of Narrow-Line Region Outflows in Nearby Seyfert Galaxies

摘要： 从活动星系中心的超大质量黑洞流出的气体被认为是对星系演化的重要贡献者。 为了探索窄线区(NLR)流出与其宿主星系之间的相互作用，我们使用哈勃空间望远镜(HST)空间望远镜成像光谱仪(STIS)光谱和宽视场相机3(WFC3)图像，对15个附近(z < 0.02)的活动星系核(AGN)进行研究，以确定其NLR的范围和几何结构。 我们将新的HST WFC3连续谱和[O III]$\lambda$5007A图像的11个AGN与4个档案AGN结合，以匹配HST STIS的现有光谱。 对于6个具有合适长缝覆盖其NLR的AGN，我们使用地面图像的等值线拟合、连续谱减去的[O III]图像和STIS光谱，解析、测量并去投影气体动力学到宿主星系盘的平面，并区分NLR流出与星系旋转和/或动力学扰动气体。 我们发现平均[O III]范围为$\sim$680pc，并且气体范围与[O III]光度之间存在相关性 R$_\mathrm{[O III]}$ $\propto$ L$_{\text{[O III]}}^{0.39}$。 测量的范围强烈依赖于[O III]图像的深度，强调了在分析比例关系时采用统一阈值的重要性。 流出范围从整个NLR范围的39-88%不等，我们发现所有6个具有STIS完整NLR覆盖的AGN都显示出强烈的动力学证据表明有流出，尽管这些AGN之前存在不确定性。 这表明在中等光度AGN中NLR流出是普遍存在的，并且标准的动力学建模标准对于识别流出是必不可少的。 显示英文摘要

摘要： Outflowing gas from supermassive black holes in the centers of active galaxies has been postulated as a major contributor to galactic evolution. To explore the interaction between narrow-line region (NLR) outflows and their host galaxies, we use Hubble Space Telescope (HST) Space Telescope Imaging Spectrograph (STIS) spectra and Wide Field Camera 3 (WFC3) images of 15 nearby (z < 0.02) active galactic nuclei (AGN) to determine the extents and geometries of their NLRs. We combine new HST WFC3 continuum and [O III] $\lambda$5007A images of 11 AGN with 4 archival AGN to match existing spectra from HST STIS. For the 6 AGN with suitable long-slit coverage of their NLRs, we use isophotal fitting of ground-based images, continuum-subtracted [O III] images, and the STIS spectra, to resolve, measure, and de-project the gas kinematics to the plane of the host galaxy disk and distinguish NLR outflows from galaxy rotation and/or kinematically disturbed gas. We find an average [O III] extent of $\sim$680pc with a correlation between gas extent and [O III] luminosity of R$_\mathrm{[O III]}$ $\propto$ L$_{\text{[O III]}}^{0.39}$. The measured extents depend strongly on the depth of the [O III] images, highlighting the importance of adopting uniform thresholds when analyzing scaling relationships. The outflows reach from 39-88% of the full NLR extents, and we find that all 6 of the AGN with STIS coverage of their entire NLRs show strong kinematic evidence for outflows, despite previous uncertainty for these AGN. This suggests that NLR outflows are ubiquitous in moderate luminosity AGN and that standard criteria for kinematic modeling are essential for identifying outflows.