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The future of 21cm intensity mapping: New paradigm, or not worth the trouble?

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If you have a question about this talk, please contact Tobias Baldauf .

21cm intensity mapping is a promising method for conducting large-scale structure surveys over extremely large cosmic volumes, and out to high redshift. A series of difficult (and interesting!) technical challenges must be solved before its promise can be fully realised, however. I will give an overview of recent progress in building, calibrating, and simulating 21cm experiments and the surveys they will conduct, and weigh the pros and cons of the method compared with simply building larger spectroscopic galaxy surveys.

This talk is part of the Cosmology Lunch series.

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