AI 中文总结
该研究编制已知CL-AGN及其相关候选天体的统一目录，经坐标统一等处理后，结合多波段辅助信息形成数据库。首次应用识别出鲁宾望远镜相关区域的CL-AGN并提供光变曲线，为未来研究提供动态可扩展资源。
AI 中文摘要
变视活动星系核（CL-AGN）为研究数月至数年时间尺度上的吸积和光谱状态变化提供了直接途径。但已知的这类天体分散在不同文献样本中。我们编制了一个统一的已知CL-AGN及其相关候选天体目录，作为时域和多波长研究的可追溯参考数据库。经过坐标统一、重复项去除和验证后，光学母目录包含1438个独特源，包括987个光谱确认的CL-AGN和451个候选或光度选择系统。我们使用nway和特定调查质量标准，用来自射电/毫米波、红外、紫外、X射线和伽马射线数据集的辅助信息扩充该目录。最终数据库包含多个波段的对应源。作为首次应用，我们在鲁宾望远镜相关区域内识别出多个已确认的CL-AGN，并提供了光变曲线，此目录将由社区驱动，为未来研究提供动态、可扩展资源。
英文摘要
Changing-look active galactic nuclei (CL-AGN) provide a direct way to study accretion and spectral-state changes on timescales of months to years. Still, the known population remains scattered across heterogeneous literature samples. We present a compilation of a homogenized catalog of known CL-AGN and related candidates, designed as a traceable reference database for time-domain and multiwavelength studies. After coordinate homogenization, duplicate removal, and validation, the optical parent catalog contains 1,438 unique sources, including 987 spectroscopically confirmed CL-AGN and 451 candidate or photometrically selected systems. We augment the catalog with ancillary information from radio/mm, infrared, ultraviolet, X-ray, and gamma-ray data sets using nway and survey-specific quality criteria. The resulting database includes 188 sources in the broad radio layer, 9 RFC/VLBI compact-core matches, 16 sources with ALMA archival coverage, 1,353 infrared counterparts, 918 GALEX ultraviolet matches, and 576 X-ray counterparts. We also identify 9 Fermi-LAT candidate associations. Overall, 1,385 sources have at least one non-optical counterpart, and 75 have coverage across the four main ancillary regimes: radio, infrared, ultraviolet, and X-ray. As a first application, we identify 70 confirmed CL-AGN within the LSST Wide--Fast--Deep footprint and 5 within the Rubin Deep Drilling Fields, and provide the up-to-date, ~116-day ugrizy Rubin lightcurve for SDSS J095902.76+021906.3 (z=0.34579) and discuss the early data inferences. This catalog is envisioned to be community-driven and provides a dynamic, expandable resource for target selection, population comparisons, and future Rubin-era CL-AGN studies.
Comments24 pages, 13 figures, 7 tables; submitted to AAS journals. The online database hosting the CL-AGN dataset can be accessed at: https://swayamtrupta.github.io/clagn-catalog-public/
