【直播】【上海天文台天体物理学术报告】Probing Cosmic Dawn On and Out Of the Ground

报告名称：

Probing Cosmic Dawn On and Out Of the Ground

报告时间：

2023年5月4日（周四）15:00

报告嘉宾：

徐怡冬 副研究员 中科院国家天文台

主办单位：

中科院上海天文台

直播通道

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报告人介绍

徐怡冬 副研究员

中科院国家天文台

Yidong Xu got her PhD from Peking University in 2011, and is now an associate research professor at the National Astronomical Observatories, Chinese Academy of Sciences. She mainly works on cosmic dawn and reionization, and the various 21 cm probes. She is a member of the Hongmeng collaboration, and also a member of both the SKA CD/EoR Science Working Group and the SKA Cosmology Science Working Group.

报告简介

Various 21 cm signals from neutral hydrogen have been proposed to probe the cosmic dawn, including the global 21 cm spectrum, the 21 cm tomography, and the 21 cm forest. They will provide valuable insights into the early structure formation during the cosmic dawn, and have been identified as one of the key scientific goals for a number of ground-based and space-borne radio experiments, including the international Square Kilometre Array and the Hongmeng project. In this talk, I’ll talk about some of the recent research progresses on the theories and 21 cm probes for the cosmic dawn. I will also introduce the Hongmeng project, which is going to measure the global 21 cm signal on lunar orbit.

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编辑：吴良秀

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