论文标题
从核能到圆形：缩放Agn驱动的Z〜2.2与Sinfoni
From Nuclear to Circumgalactic: Zooming in on AGN-Driven Outflows at z~2.2 with SINFONI
论文作者
论文摘要
我们使用VLT上的Sinfoni的深层自适应光学辅助辅助积分场光谱研究，研究由活性银河系核（AGN）在Z〜2.2-2.2-ID5，COS4-11337和J0901+1814的三个星系中的电离气体流出的空间分解特性。这些系统探测了从核量表的AGN反馈，并为AGN驱动的流出与宿主星系相互作用的不同机制提供了独特的见解。 K20-ID5和COS4-11337是带有功能强大的$ \ sim $ 1500 km s $^{ - 1} $ AGN驱动的流量的紧凑型星系星系，占主导了其核H $α$排放。流出似乎对宿主星系的瞬时恒星形成活性没有任何影响，但是它们具有大量的动能，可以加热光环气体并有可能导致冷气积聚速率降低到星系中。 COS4-11337的流出直接向其伴随的Galaxy Cos4-11363传播，预计分离为5.4 kpc。 COS4-11363显示了休克激发的迹象和恒星形成活性的最新截断，这可能是由COS4-11337的流出引起的。 J0901+1814具有重力镜头，使我们可以看到紧凑的独特视图（r = 470 $ \ pm $ 70 pc），相对较低的速度（$ \ sim $ \ sim $ 650 km s $^{ - 1} $）agn-agn-agn-agn-agn-drive virniven virniven viver流出。 J0901+1814具有与COS4-11337相似的AGN光度，这表明流出性能的差异与当前的AGN亮度无关，而是可以反映出流出阶段和/或耦合效率在Agn Iymitization辐射场与核区域的偶联效率的差异。
We use deep adaptive optics assisted integral field spectroscopy from SINFONI on the VLT to study the spatially resolved properties of ionized gas outflows driven by active galactic nuclei (AGN) in three galaxies at z~2.2 -- K20-ID5, COS4-11337 and J0901+1814. These systems probe AGN feedback from nuclear to circumgalactic scales, and provide unique insights into the different mechanisms by which AGN-driven outflows interact with their host galaxies. K20-ID5 and COS4-11337 are compact star forming galaxies with powerful $\sim$1500 km s$^{-1}$ AGN-driven outflows that dominate their nuclear H$α$ emission. The outflows do not appear to have any impact on the instantaneous star formation activity of the host galaxies, but they carry a significant amount of kinetic energy which could heat the halo gas and potentially lead to a reduction in the rate of cold gas accretion onto the galaxies. The outflow from COS4-11337 is propagating directly towards its companion galaxy COS4-11363, at a projected separation of 5.4 kpc. COS4-11363 shows signs of shock excitation and recent truncation of star formation activity, which could plausibly have been induced by the outflow from COS4-11337. J0901+1814 is gravitationally lensed, giving us a unique view of a compact (R = 470 $\pm$ 70 pc), relatively low velocity ($\sim$650 km s$^{-1}$) AGN-driven outflow. J0901+1814 has a similar AGN luminosity to COS4-11337, suggesting that the difference in outflow properties is not related to the current AGN luminosity, and may instead reflect a difference in the evolutionary stage of the outflow and/or the coupling efficiency between the AGN ionizing radiation field and the gas in the nuclear regions.
