The dependence of cosmic ray driven galactic winds on halo mass

Understand

Galactic winds regulate star formation in disk galaxies and help to enrich the circum-galactic medium.

• They are therefore crucial for galaxy formation, but their driving mechanism is still poorly understood.
• Recent studies have demonstrated that cosmic rays (CRs) can drive outflows if active CR transport is taken into account.
• Using hydrodynamical simulations of isolated galaxies with virial masses between $10^{10}$ and $10^{13}\mathrm{~M_\odot}$, we study how the properties of CR-driven winds depend on halo mass.