Chemical evolution of galaxies: emerging dust and the different gas phases in a new multiphase code

Understand

Dust plays an important role in the evolution of a galaxy, since it is one of the main ingredients for efficient star formation.

• Dust grains are also a sink/source of metals when they are created/destroyed, and, therefore, a self-consistent treatment is key in order to correctly model chemical evolution.
• In this work, we discuss the implementation of dust physics into our current multiphase model, which also follows the evolution of atomic, ionised and molecular gas.
• Our goal is to model the conversion rates among the different phases of the interstellar medium, including the creation, growth and destruction of dust, based on physical principles rather than phenomenological recipes inasmuch as possible.