Transition from small-scale to large-scale dynamo in a supernova-driven, multiphase medium

Understand

Magnetic fields are widely recognised as critical at many scales to galactic dynamics and structure, including multiphase pressure balance, dust processing, and star formation.

• Using imposed magnetic fields cannot reliably model the interstellar medium's (ISM) dynamical structure nor phase interactions.
• Dynamos must be modelled.
• ISM models exist of turbulent magnetic fields using small-scale dynamo (SSD).