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Active galactic nuclei (AGN) play a crucial role in regulating star formation and galaxy evolution. With the upcoming next-generation high-redshift, wide-field, multi-object spectroscopic surveys, it is increasingly important to efficiently identify AGN candidates from massive survey data and infer their physical properties via spectral and emission-line characteristics. To address this, we have developed a new module, [nebular_AGN], for the popular SED-fitting tool CIGALE, based on the radiative transfer code CLOUDY. This module enables the derivation of AGN spectral and physical properties through both NLR and BLR emission lines. Benchmark tests demonstrate that the module reliably reproduces the majority of AGN emission lines and provides reasonable estimates of their physical parameters. Our work incorporates emission-line flux fitting into the SED-fitting framework, allowing CIGALE users to more robustly constrain AGN properties.

BIO

张浩，Laboratoire d'Astrophysique de Marseille 在读二年级博士生。本科毕业于南开大学物理科学学院，硕士毕业于Niels Bohr Institute, University of Copenhagen。研究兴趣为高红移AGN和星系的演化和光谱模拟。目前主要研究方向为AGN BLR和NLR发射线的辐射传输模拟，并参与Subaru/PFS与VLT/MOONS high-z galaxy evolution方面的合作。

Host: Siyi Zhao