DOIAbstract
The gravitational instability (GI) may play an important role in the very early evolution of protoplanetary discs by providing a source of viscosity, generating conditions suitable for accelerated dust growth, and potentially forming giant gaseous protoplanets through the direct gravitational collapse of disc material. It is now possible to observe young discs with telescopes such as ALMA. However a self-gravitating phase is likely to be brief (t<10^5 yrs) as a disc will rapidly evolve toward a lower mass, gravitationally stable state, thus limiting our prospects of observing these systems. In this work we use Monte Carlo radiative transfer models to analyse how dust-trapping in the spiral regions of self-gravitating discs results in enhanc...
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