50 Years of Horndeski Gravity: Exploring Modified Gravity

Testing gravity with the Dark Energy Survey

Jul 17, 2024, 2:45 p.m.

15m

PI/1-100 - Theatre (Perimeter Institute for Theoretical Physics)

Contributed Talk Contributed Talks

Speaker

Jessica Muir (Perimeter Institute)

Description

Measurements of the large-scale distribution of matter in the Universe are one of our primary tools for testing the predictions of general relativity on cosmological scales. I will describe how we pursue this using data from galaxy imaging surveys, focusing on Dark Energy Survey galaxy clustering and weak lensing analyses as an example. I will highlight results from the DES Year 3 analysis that are relevant for testing gravity, some practical aspects of extending survey analyses beyond ΛCDM, as well as ongoing work to address these challenges to prepare for future surveys.

External references

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