高能理論論壇第5期
報(bào)告題目：Explorations on 21cm cosmology: the Tianlai and Hongmeng (DSL) projects
報(bào)告人：陳學(xué)雷 研究員，中國(guó)科學(xué)院國(guó)家天文臺(tái)
報(bào)告時(shí)間：2021年4月14日（周三）15:00-16:00
報(bào)告地點(diǎn)：中科院高能所圖書(shū)館樓319會(huì)議室
騰訊會(huì)議ID：824 6579 2265
活動(dòng)網(wǎng)頁(yè)：https://indico.ihep.ac.cn/category/824/
報(bào)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(gè)人簡(jiǎn)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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