论文标题
在Seimei望远镜上使用Kools-IFU对目标样本的光学观察结果：9 U/LIRGS的初始结果$ z <$ z <$ 0.04
Optical IFU Observations of GOALS Sample with KOOLS-IFU on Seimei Telescope: Initial results of 9 U/LIRGs at $z <$ 0.04
论文作者
论文摘要
我们通过在Seimei望远镜上与Kools-IFU进行IFU观察，以$ z <0.04 $ z <$ z <0.04 $ z <$ z <$ 0.04的电离气体特性（u/lirgs）。观察到的目标是从伟大的观测值全天文的LIRG调查（目标）中得出的，涵盖了广泛的合并阶段。 We successfully detect emission lines such as H$β$, [OIII]$λ$5007, H$α$, [NII]$λλ$6549,6583, and [SII]$λλ$6717,6731 with a spectral resolution of $R$ = 1500-2000, which provides (i) spatially-resolved ($\sim$200-700 pc) moment map在中央$ \ sim $ \ sim $ 3--11 kpc中直径的电离气体和（ii）活性银河核（AGN）的诊断。我们发现，预期会由AGN驱动的[OIII]流出倾向于（i）向银河中心和（ii）作为合并阶段的序列。特别是，晚期（D阶段）合并的流出强度比早期（B阶段）合并强的1.5倍，这表明星系合并可以诱导AGN驱动的流出，并在星系和超级质量黑洞的共同发展中起重要作用。
We present ionized gas properties of 9 local ultra/luminous infrared galaxies (U/LIRGs) at $z <$ 0.04 through IFU observations with KOOLS-IFU on Seimei Telescope. The observed targets are drawn from the Great Observatories All-sky LIRG Survey (GOALS), covering a wide range of merger stages. We successfully detect emission lines such as H$β$, [OIII]$λ$5007, H$α$, [NII]$λλ$6549,6583, and [SII]$λλ$6717,6731 with a spectral resolution of $R$ = 1500-2000, which provides (i) spatially-resolved ($\sim$200-700 pc) moment map of ionized gas and (ii) diagnostics for active galactic nucleus (AGN) within the central $\sim$3--11 kpc in diameter for our sample. We find that [OIII] outflow that is expected to be driven by AGN tends to be stronger (i) towards the galactic center and (ii) as a sequence of merger stage. In particular, the outflow strength in the late-stage (stage D) mergers is about 1.5 times stronger than that in the early-state (stage B) mergers, which indicates that galaxy mergers could induce AGN-driven outflow and play an important role in the co-evolution of galaxies and supermassive black holes.
