The cosmic web influences the rapid evolution of the cold interstellar medium in SIMBA galaxies

Understanding the relationship between the cosmic web and the galaxy's cold interstellar medium (ISM; gas, dust, and metals) is one of the key steps towards understanding galaxy evolution. However, the exploration of key ISM properties with respect to cosmic web environments beyond the local universe is still in its infancy, both due to various observational and theoretical challenges.

Here I present the results of the study that explores, for the first time, how the structural properties of environments in which dusty galaxies reside influence their ISM. We use SIMBA cosmological simulation in order to track the cosmic evolution of some of the evolutionary markers of the ISM (such as the gas-to-dust mass ratio and dust-to-metal ratio) as a function of their distances to the 3D cosmic web features. I will demonstrate how the proximity of a galaxy to a filament shapes the rapid cosmic evolution of the galaxy ISM, but differently for star-forming and quiescent galaxies. Particular attention will be given to the role of the cosmic web in shaping excess gas-to-dust mass ratios in galaxies within the first 1 Gyr since their quenching.