Searching for and characterising obscured AGN in the high redshift Universe with JWST

随着JWST最近的发射，我们可以获得非常高红移的静止框架光谱学。这使我们能够找到新的活动星系核（活动星系核）使用现有的发射线诊断在低红移。然而，我们预计人口的发展意味着这些诊断可能无法找到所有的活动星系核。这个项目的重点是使用BEAGLE-AGN，一个bakeded的SED拟合代码，其中包括从AGN窄线区域的线发射模型。作为NIRSpec GTO团队的一员，该学生将分析新的深层光谱。用BEAGLE-AGN方法识别活动星系核，并对窄线区域内的气体性质进行分析。这将增加现有的探测方法，以提供更完整的普查活动星系核在早期宇宙。

With the recent launch of JWST, we have access to rest-frame optical spectroscopy out to very high redshifts. This allows us to find new AGN (Active Galactic Nuclei) using existing emission line diagnostics at low redshift. However, we expect the population to evolve meaning those diagnostics may not find all AGN. This project focuses on using BEAGLE-AGN, a bayesian SED-fitting code that includes models of line emission from AGN narrow-line regions. As part of the NIRSpec GTO team, this student will analyse new, deep spectroscopy. Identify AGN using BEAGLE-AGN, and characterise the gas properties within the narrow line regions themselves. This will add to existing detection methods to provide a more complete census of AGN in the early Universe.