论文标题
在水上吸烟：CO和H2O在红移2.64的类星体周围的周环中
Smoke on the water: CO and H2O in a circumnuclear disc around a quasar at redshift 2.64
论文作者
论文摘要
我们对380 GHz水发射线的Atacama大（亚）毫米阵列（ALMA）进行了分析，并从Mg J0414+0534（11-10）发射线（11-10）发射线，这是一个重力透镜的尘土飞扬的星星形成的星系，可容纳1型或1型或1型Quasar。我们还以无线电源的全局非常长的基线干涉法（VLBI）为单位提出了1.6 GHz的观察结果。我们证实了先前报道的380 GHz水系的检测，并且相对于无线电/MM连续体，两个合并的透镜图像之间的通量密度比逆转。我们进一步发现了几天时间尺度综合线强度的差异证据。我们表明，380 GHz的水管具有两个发射组成部分：圆盘在类星体周围的直径约为35 pc，而发射的另一个组成部分则抵消了$ \ sim $ \ sim $ 600 pc，垂直于圆盘靠近镜片的圆盘。通过对多波长数据集的透镜建模，我们为类星体系统构建了一个模型，该模型由一个分子气体的周核盘组成，大小约为60 pc，由无线电飞机一分为二PC，距离无线电芯约200 pc。我们的发现表明，使用强烈镜头类星体的高兴奋分子线的Alma观察可以详细研究黑洞和星系生长的宇宙峰值的AGN积聚和反馈。
We present an analysis of observations with the Atacama Large (sub-)Millimetre Array (ALMA) of the 380 GHz water emission line and CO (11-10) emission line from MG J0414+0534, a gravitationally lensed dusty star-forming galaxy that hosts a type 1 quasar. We also present observations at 1.6 GHz with global very long baseline interferometry (VLBI) of the radio source. We confirm the previously reported detection of the 380 GHz water line and that the flux density ratio between the two merging lensed images is reversed with respect to the radio/mm continuum. We further find tentative evidence of variability in the integrated line intensity on timescales of days. We show that the 380 GHz water line has two components of emission: a disc that is around 35 pc in diameter around the quasar, and another component of emission that is offset $\sim$600 pc perpendicular to the disc that lies close to the lensing caustic. With lens modelling of the multi-wavelength data sets, we construct a model for the quasar system consisting of a circumnuclear disc of molecular gas with a size of about 60 pc bisected by radio jets extending to a distance of about 200 pc from the radio core. Our findings suggest that observations with ALMA of high-excitation molecular lines from strongly lensed quasars could allow detailed studies of AGN accretion and feedback at the cosmic peak of black hole and galaxy growth.
