A Predictive Theory of Star Formation and Turbulence Driving Across Cosmic Time
Our current view of the interstellar medium (ISM) is as a multiphase environment where magnetohydrodynamic (MHD) turbulence affects many key processes that govern the evolution of galactic disks include star formation. In this talk, I shall present two new analytic models connecting turbulence, star formation, feedback, and disk instability. I will show that the turbulence in discs can be powered primarily by star formation feedback, radial transport, or a combination of the two. From scales of GMCS, I will demonstrate how the star formation efficiency can be analytically calculated from our understanding of how turbulence, gravity, and stellar feedback induce density fluctuations in the ISM via a probability distribution function analysis. This analytic calculation predicts star formation rates and star formation efficiency from pc size scales (GMCs) to kpc size scales in galaxies.