Magnetic effects are important for accretion disc dynamics. In PPDs, much still needs to be understood in how non-ideal MHD effects (Ohmic, Hall and ambipolar diffusion), which are relevant because of the low ionisation levels found in much of the disc, affect the radial accumulation and retention of magnetic flux needed for processes such as the launching of a magnetic disc wind. I aim to...
The recent developments in our understanding of the chemical composition, the ionisation equilibrium and the dynamics of protoplanetary discs has led to the conclusion that magnetised disc wind (MDW) are probably playing an important role in shaping the long term evolution of these objects. Most of our understanding of these winds comes from global direct numerical simulations which include...
Recent years have seen tremendous progress in our understanding of angular momentum transport in protoplanetary disks. It is now thought that accretion is driven primarily by a large-scale vertical field threading the disk, either through magnetically launched winds or large-scale magnetic stresses within the disk plane. However, it remains an open question as to just how laminar these...
The overall structure of the evolving protoplanetary disk is set by the interaction of accretion and dispersal processes such as turbulence, winds and photoevaporation (Ercolano & Pascucci 2017), with finer structural details (as gaps, cavities, spirals and warps) in the disk provided by planet formation (eg. Van der Marel et al. 2015). Recent meteoritic evidence from Kruijer et al. (2017)...
