标题： 量化ULIRGs中的活动星系核驱动风（QUADROS）II：来自哈勃望远镜[OIII]成像观测的紧凑风区证据 显示英文标题

标题： Quantifying the AGN-driven outflows in ULIRGs (QUADROS) II: evidence for compact outflow regions from HST [OIII] imaging observations

摘要： 温暖的、由AGN驱动的外流对星系演化的真正重要性仍然不确定。对外流的径向范围的测量是量化其质量与动能的关键，同时也用于确定AGN外流是否为星系范围的。因此，作为一项更大项目的一部分，该项目旨在研究本地宇宙中演化最快的星系中温暖的、由AGN驱动的外流的重要性，我们在此呈现了对8个附近ULIRGs完整样本的深场哈勃空间望远镜（HST）窄带[OIII]$\lambda$5007观测，这些样本具有光学AGN核。结合我们地面光谱观测提供的补充信息，HST图像显示，对于样本中的大多数物体，温暖气体外流相对紧凑：在三个物体中，外流区域在HST的分辨率下 barely 解析（$0.065 < R_{[OIII]} < 0.12$kpc）；在另外四种情况下，外流在空间上被解析，但通量加权平均半径在$0.65 < R_{[OIII]} < 1.2$kpc范围内；而在仅有一个物体（Mrk273）中，有明确的证据表明存在更广泛的外流，最大范围为$R_{[OIII]}\sim5$kpc。总体而言，我们的观测很少支持某些AGN反馈模型预测的星系范围的外流。 显示英文摘要

摘要： The true importance of the warm, AGN-driven outflows for the evolution of galaxies remains uncertain. Measurements of the radial extents of the outflows are key for quantifying their masses and kinetic powers, and also establishing whether the AGN outflows are galaxy-wide. Therefore, as part of a larger project to investigate the significance of warm, AGN-driven outflows in the most rapidly evolving galaxies in the local universe, here we present deep Hubble Space Telescope ( HST) narrow-band [OIII]$\lambda$5007 observations of a complete sample of 8 nearby ULIRGs with optical AGN nuclei. Combined with the complementary information provided by our ground-based spectroscopy, the HST images show that the warm gas outflows are relatively compact for most of the objects in the sample: in three objects the outflow regions are barely resolved at the resolution of HST ($0.065 < R_{[OIII]} < 0.12$ kpc); in a further four cases the outflows are spatially resolved but with flux weighted mean radii in the range $0.65 < R_{[OIII]} < 1.2$ kpc; and in only one object (Mrk273) is there clear evidence for a more extended outflow, with a maximum extent of $R_{[OIII]}\sim5$ kpc. Overall, our observations show little evidence for the galaxy-wide outflows predicted by some models of AGN feedback.