Jay tells us about how he has used the CAMELS suit of simulations to improve upon existing galaxy cluster scaling relations (i.e. trends we use to measure cluster masses using observational probes).

One example is using the concentration of ionised gas in a cluster to add a little bit more precision to a Sunyaev Zeldovich effect – mass scaling relation. The value of the concentration makes a small change to the prediction.

Jay specifically uses symbolic regression (or similar algorithms) to find expressions that link the properties of interest (e.g. mass, concentration and SZ effect), thus allowing us as human beings to also gain some intuition from what the machine finds.

Jay: https://jaywadekar.github.io/
Paper: https://arxiv.org/abs/2201.01305

CAMELS playlist: https://www.youtube.com/watch?v=6Vgc72a_VpY&list=PLvy7h0l2rJHq03inVPqYnC3llKt0IwwLT&t=0s