Molecular Hydrogen in Cosmological Simulations

Phd Thesis March 2020: Emanuel Sillero (Universidad Nacional de Córdoba) developed a new model to describe the formation of molecular hydrogen (H_2) in cosmological simulations

We developed a model to describe the hydrodynamical and chemical evolution of cosmic structures, incorporating the chemistry and cooling of molecular hydrogen, and metal cooling in non-equilibrium. We find that the characteristics of the simulated galaxies, both globally and at kpc-scales, are in good agreement with several observable properties of molecular gas in star-forming galaxies. The surface density profiles of SFR and H_2 are found to vary with the clumping factor and resolution. The simulated molecular Kennicutt-Schmidt relation is well reproduced.