Posterior distributions of AGN parameters in 88 X-ray selected AGN at cosmic noon

There is an evidence for significant evolution in the gaseous and dust properties of galaxies since the era of cosmic noon (1 &lt; z &lt; 2.5). It is also well known that supermassive black holes co-evolve with their host galaxies, suggesting a constant connection between the small-scale (nuclear) and large-scale regions of galaxies. A fundamental component of Active Galactic Nuclei (AGN) is the "torus", a dense, dusty structure that acts as the interface between the accretion disc and the ISM of the host galaxy. One may speculate that the transitional nature of the torus makes it a prime subject to search for evolution since cosmic noon. In this work, we use <i>JWST</i> high resolution near- and mid-IR imaging from the CEERS survey to disentangle the emission from the torus in unprecedented detail for 88 X-ray selected AGN at z ~ 2. Combining low-resolution multi-band photometry at UV to FIR wavelengths, from the archival CANDELS and HELP surveys, with the high-resolution <i>JWST</i> photometry, we employ a novel SED fitting method to constrain essential AGN and torus parameters, such as accretion disc luminosity, torus opening angle, and inclination angle. Despite the well-known evolution of the ISM and structural properties of AGN hosts to these redshifts, our population-level analysis finds no clear evidence for the evolution of the torus when compared to similar local AGN.This dataset provides the posterior distributions of 14 galaxy and AGN parameters and 1 derived AGN paramter for all 88 sources in our sample. These posterior distributions were obtained by SED fitting as described in the accompanying paper.

已有证据表明，自宇宙正午时期（1 < z < 2.5）以来，星系的气体与尘埃属性发生了显著演化。众所周知，超大质量黑洞与其宿主星系共演化，这暗示星系的小尺度（核区）与大尺度区域之间存在持续的关联。
活动星系核（Active Galactic Nuclei, AGN）的核心组成部分是“环面（torus）”——一种致密的尘埃结构，充当吸积盘与宿主星系星际介质（Interstellar Medium, ISM）之间的界面。我们有理由推测，环面的过渡属性使其成为探索宇宙正午以来星系演化的理想研究对象。
在本研究中，我们利用CEERS巡天项目的詹姆斯·韦布空间望远镜（James Webb Space Telescope, JWST）高分辨率近红外与中红外成像数据，对88个红移z≈2的X射线选源AGN进行了前所未有的精细分析，以分离出环面的辐射信号。我们结合来自存档CANDELS与HELP巡天项目的紫外至远红外波段低分辨率多波段测光数据，以及高分辨率JWST测光数据，采用了一种新颖的光谱能量分布（Spectral Energy Distribution, SED）拟合方法，对关键的AGN与环面参数进行约束，包括吸积盘光度、环面张角与倾角。
尽管已知在该红移区间内，AGN宿主星系的星际介质与结构属性均存在演化，但我们的群体水平分析显示，与同类本地AGN相比，并未发现环面演化的明确证据。
本数据集为样本中全部88个源提供了14个星系与AGN参数，以及1个衍生AGN参数的后验分布。这些后验分布是通过伴随论文中描述的SED拟合方法得到的。