Neutral Gas in Galaxies: the interstellar medium and outflows
by
Claudia Lagos(ESO)
→
Europe/Stockholm
FA31
FA31
Description
In this talk I will summarise the main developments of the last years in the
modelling of neutral gas in cosmological models of galaxy formation and
evolution, which has allowed the distinction between atomic and molecular
gas in the interstellar medium and realistic models of star formation and
feedback to be incorporated. This modelling has allowed, for example, to
reconcile the weak evolution in the atomic hydrogen cosmic density with the
strong evolution in star formation rate, and the interpretation of scaling
relations between the neutral gas and other galaxy components. In addition
to this, I will show how through a hydrodynamic description of the growth of
supernovae driven bubbles in this multi-phase interstellar medium, we are
able to predict outflow rates and velocities in good agreement with those
observed in the local and high-redshift Universe.
