The accuracy of the interpretation of the current generation of late-time cosmology probes is greatly limited by the theorists' ability to predict the response of baryons. This will only get more difficult in the coming years with the upcoming surveys (DESI-BGS, Euclid, LSST, 4-most) mapping our sky with unprecedented precision.
In this talk, I will discuss some of the efforts towards this challenge on the simulation side. I will, in particular, focus on the required developments in the SWIFT code and the new generation of simulations, the FLAMINGO suite, designed to be virtual twins of the Stage IV cosmology surveys. This suite includes the largest simulation ever run to z=0 and exploits a state-of-the-art baryon physics model calibrated to the relevant data. Variations in the physics, trained via machine learning techniques, allow us to encompass the uncertainty in the modeling. Outputs in observer space, such as X-ray, stellar light and SZ lightcones are produced and are used to validate the simulations.
This talk is a invitation to make use of this data for your research.
For those wishing to join remotely, please click on the link below:
Seminar Series 22/23 link