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The X-ray spectral analysis of new Compton thick openParCT-closePar active galactic nuclei openParAGNclosePar represents a fundamental step to understand the physics of the obscuring material surrounding accreting super-massive black holes. However comma at the present day comma CT-AGN remain extremely hard to detect. Implementing previously successful selection criteria comma we propose to target 6 low-redshift candidate CT-AGN from the Swift-BAT 150-month catalog with 10 ks XMM-Newton observations each. This analysis will help determine the true intrinsic fraction of CT-AGN in the local universe and their contribution to the Cosmic X-ray Background openParCXBclosePar.

针对新发现的康普顿厚活动星系核（Compton thick AGN）开展X射线光谱分析，是阐释吸积超大质量黑洞周围遮蔽物质物理本质的关键基础性工作。然而时至今日，康普顿厚活动星系核仍极难被探测。我们采用此前已验证有效的筛选判据，计划对斯威夫特-BAT（Swift-BAT）150个月巡天星表中的6个低红移候选康普顿厚活动星系核，逐个开展10 ks的XMM-牛顿（XMM-Newton）观测。此项分析将有助于明确本地宇宙中康普顿厚活动星系核的真实本征占比，及其对宇宙X射线背景（CXB）的贡献份额。