报告题目: |
Piercing through Highly Obscured and Compton-thick AGNs in the Chandra Deep Fields |
报告人: |
薛永泉 教授 |
报告人单位: |
中国科学技术大学天文学系 |
报告时间: |
2018年5月31日上午9:00 |
报告地点: |
东七楼427 |
邀请单位: |
粒子与天体物理研究所 |
报告摘要: |
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Highly obscured and Compton-thick (CT) active galactic nuclei (AGNs) escaping even the deepest X-ray surveys are often thought to be comparably numerous to unobscured and moderately obscured AGNs. These sources are necessary for fitting the cosmic X-ray background emission in the 10-30 keV band and play a crucial role in the black hole/galaxy co-evolution history. In this talk I present, in a personal point of view, some recent efforts in searching for highly obscured and CT AGNs in the Chandra Deep Fields. I discuss the properties and implications of the highly obscured and CT AGNs/AGN candidates identified through these efforts. I also discuss future prospects of pushing this area forward. |
报告人简介: |
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薛永泉,2000年与2003年分别获得北京大学学士与硕士学位,2008年获得美国普度大学博士学位,之后在美国宾州州立大学从事博士后研究,2012年5月到中国科学技术大学天文系任教授。主要研究方向为利用多波段(尤其是X射线)深场巡天来研究活动星系核的相关物理过程和现象,例如,活动星系核的统计,超大质量黑洞和星系的协同演化,宇宙X射线背景辐射,遮蔽活动星系核以及活动星系核X射线光变等。 |