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Primordial black holes in the dark ages

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If you have a question about this talk, please contact David Mulryne.

Future observations promise to unveil cosmic history during the “dark ages,” between roughly z=30 and 800. Observations of 21cm radiation are especially suited to detecting the ionisation history and thermal properties of the intergalactic medium (IGM) during this period. I will describe how primordial black holds (PBHs) would affect the IGM during the dark ages, which can lead to better constraints on potential PBH populations. I will also explain some unique PBH observational signatures that can distinguish them from other sources of IGM energy injection, such as decaying dark matter.

This talk is part of the Cosmology Lunch series.

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