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A Pensioner’s View of Cosmic Tensions

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If you have a question about this talk, please contact Dongwon Han .

Zoom link: https://zoom.us/j/99405895593.

The LCDM cosmology provides a remarkably good fit to a wide range of observations, notably the temperature and polarization of the cosmic microwave background. There are, however, hints of possible tensions with the LCDM model. The `Hubble tension’ and `S8 tension’ are the best known examples. The former is reliant on the accuracy of the Cepheid distance scale measured by the SH0ES team and the latter is reliant on the accuracy of the measurement and modelling of cosmic shear. I will review the status of both of these tensions in the light of recent work.

This talk is part of the Cosmology Lunch series.

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