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Testing General Relativity with 21 cm intensity mapping

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If you have a question about this talk, please contact Camille Bonvin.

I investigate the prospects for constraining alternative theories of gravity with a new observational technique, the 21 cm intensity map. I will discuss the merits of this approach, and demonstrate the existence of new large-scale contributions to the signal from relativistic effects. I will also address the issue of how best to parameterise modified gravity in the cosmological setting.

This talk is part of the Cosmology Lunch series.

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