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Title: 21cm Cosmology
Originating Office: IAS
Speaker: Chen, Xuelei (陳學雷)
Issue Date: 31-May-2011
Event Date: 31-May-2011
Group/Series/Folder: Record Group 8.15 - Institute for Advanced Study
Series 3 - Audio-visual Materials
Location: 8.15:3 box 1.7
Notes: IAS Conference on Cosmology since Einstein.
IAS title: Talk 10: '21cm Cosmology'.
Abstract: The 21cm radiation emitted by neutral hydrogen provides a very powerful cosmological probe, in principle it could be used to observe the Universe from present up to redshift 100. At present, a large number of experiments are devoted to search for the 21cm signal at the epoch of reionization. In addition, the 21cm observation can also be used to study the Universe at a lower redshift, to provide information on dark energy. Prof Chen reviews some recent progress in this field, then discusses his own work on 21cm theory, and also the Tianlai project, an experiment dedicated to dark energy observation in China.
Duration: 36 min.
Appears in Series:8.15:3 - Audio-visual Materials
Videos for Public -- Distinguished Lectures