论文标题
漫画AGN中的电离气体运动学。狭窄线和运动学干扰区域的范围
Ionised Gas Kinematics in MaNGA AGN. Extents of the Narrow Line and Kinematically Disturbed regions
论文作者
论文摘要
我们分析了170个AGN宿主星系的运动学与漫画调查中非活性星系的对照样品相比，以表征和估算AGN的狭窄线区域（NLR）和运动学干扰区域（KDR）的范围。我们将观察到的NLR半径定义为距离[OIII]/HβAND[NII]/HαRatios在BPT图的AGN区域中且Hα等价宽度大于3.0 a的核中最远的距离。 KDR的范围定义为距离AGN宿主星系的核的距离比对照星系显示出更干扰的气体运动学。源自[OIII]线轮廓的运动学表明，平均而言，最发光的AGN（L [OIII]> 3.8 * 10^40 ERG S^-1）在气态和恒星速度和速度分散之间具有更高的残留差异。在55和46 AGN宿主星系中发现了空间解决的NLR和KDR，校正了半径0.2 <r_kdr，c <2.3 kpc和0.4 <r_nlr，c <10.1 kpc，与log r_kdr，c =（0.53 \ pm0.12）log r_kdr给出的两个相关性（1.07 \ pm0.22）。 KDR的扩展对应于NLR的30％。假设KDR是由于AGN流出引起的，我们估计的离子气体质量流率在10^-5至1 myr^-1之间，动力范围为10^34至10^40 erg s^-1。将AGN离子流出的功能与AGN亮度进行比较，它们始终低于0.05 L_AGN模型阈值，因为它们对各自的宿主星系具有重要的反馈效果。我们AGN样品的质量流率（和功率）与它们的亮度相关，填充了先前发现的更强大来源的相关性的最低AGN光度范围。
We analyse the kinematics of 170 AGN host galaxies as compared to those of a matched control sample of non-active galaxies from the MaNGA survey in order to characterise and estimate the extents of the Narrow Line Region (NLR) and of the kinematically disturbed region (KDR) by the AGN. We define the observed NLR radius as the farthest distance from the nucleus within which both [Oiii]/Hβand [Nii]/Hαratios fall in the AGN region of the BPT diagram and the Hαequivalent width is required to be larger than 3.0Å. The extent of the KDR is defined as the distance from the nucleus within which the AGN hosts galaxies shows a more disturbed gas kinematics than the control galaxies. The kinematics derived from the [Oiii] line profiles reveal that, on average, the most luminous AGN (L[Oiii] > 3.8 * 10^40 erg s^-1) possess higher residual difference between the gaseous and stellar velocities and velocities dispersion than their control galaxies. Spatially resolved NLR's and KDR's were found in 55 and 46 AGN host galaxies, with corrected radii 0.2 < r_KDR,c < 2.3 kpc and 0.4 < r_NLR,c < 10.1 kpc, with a relation between the two given by log r_KDR,c = (0.53\pm0.12) log r_NLR,c + (1.07\pm0.22), respectively. The extension of the KDR corresponds to about 30 per cent of that of the NLR. Assuming that the KDR is due to an AGN outflow, we have estimated ionised gas mass outflow rates that range between 10^-5 and \approx 1 Myr^-1, and kinetic powers that range from 10^34 to 10^40 erg s^-1. Comparing the power of the AGN ionised outflows with the AGN luminosities, they are always below the 0.05 L_AGN model threshold for having an important feedback effect on their respective host galaxies. The mass outflow rates (and power) of our AGN sample correlate with their luminosities, populating the lowest AGN luminosity range of the correlations previously found for more powerful sources.
