高能理論論壇第5期
報告題目：Explorations on 21cm cosmology: the Tianlai and Hongmeng (DSL) projects
報告人：陳學雷 研究員，中國科學院國家天文臺
報告時間：2021年4月14日（周三）15:00-16:00
報告地點：中科院高能所圖書館樓319會議室
騰訊會議ID：824 6579 2265
活動網(wǎng)頁：https://indico.ihep.ac.cn/category/824/
報告摘要：
The 21cm line of neutral hydrogen is a promising tool for cosmology. I will first briefly review the present status of 21cm cosmology, then I will describe two projects: the Tianlai 21cm intensity mapping experiment in Xinjiang, and the Discovering Sky at the Longest wavelength (DSL, also known by the Chinese name Hongmeng) project, which is a proposed lunar orbit array to map the sky at ultralong wavelength and measure the 21cm global spectrum from cosmic down.
個人簡介：
Xuelei Chen is a professor at the National Astronomical Observatory, Chinese Academy of Science. He received his Ph.D. from Columbia University in 1999. He works on cosmology, radio astronomy and particle astrophysics, and has published more than 150 research papers in this field. He is the PI for the Tianlai experiment and DSL experiment.
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