论文标题
用碳 - [CII]从银河系培养基和活性银核中喂食蜘蛛
Feeding the spider with carbon -- [CII] emission from the circum galactic medium and active galactic nucleus
论文作者
论文摘要
我们使用Atacama Pathfinder实验介绍了[CII] 158UM在z = 2.1612处从蜘蛛网星系发射的检测。该线谱分裂为先前在CO和[CI]中鉴定的活性银河核（AGN）和割液培养基（CGM）分量。我们发现，这些单独的[CII]成分在CO和FAR-IR亮度比与其他Z> 〜1 AGN和尘土飞扬的星系星系的种群方面是一致的。 The CGM component dominates the [CII] emission in the 10" APEX beam. Although we do not have spatially resolved data, the close correspondence of the velocity profile with the CO(1-0) detected only on scales of tens of kiloparsecs in CO(1-0) suggests that the [CII] emission is similarly extended, reminiscent of [CII] halos recently found around z>5 galaxies.比较了碳的前四个电离状态，我们发现原子[CI]发射是显性的，这增加了其作为分子质量示踪剂的可靠性。
We present the detection of [CII] 158um emission from the Spiderweb galaxy at z=2.1612 using the Atacama Pathfinder EXperiment. The line profile splits into an active galactic nucleus (AGN) and circum galacic medium (CGM) component previously identified in CO and [CI]. We find that these individual [CII] components are consistent in terms of CO and far-IR luminosity ratios with the populations of other z>~1 AGN and dusty star-forming galaxies. The CGM component dominates the [CII] emission in the 10" APEX beam. Although we do not have spatially resolved data, the close correspondence of the velocity profile with the CO(1-0) detected only on scales of tens of kiloparsecs in CO(1-0) suggests that the [CII] emission is similarly extended, reminiscent of [CII] halos recently found around z>5 galaxies. Comparing the first four ionization states of carbon, we find that the atomic [CI] emission is dominant, which increases its reliability as a molecular mass tracer. Our [CII] detection at 601.8 GHz also demonstrates the feasibility to extend the frequency range of ALMA Band 9 beyond the original specifications.
