The role of viscosity and EUV/RX radiation in the dispersal of protoplanetary discs

The EUV and X-ray radiation of host stars in protoplanetary discs produce photoevaporative processes that seem to play an important role in their evolutionary time-scales. The viscosity of the discs is a fundamental parameter when modeling these discs using the α-prescription. Unfortunately, there is no single accepted value for this viscosity, and the results are very dependant on that value. Our work has implemented a grid of simple 1D models in which the value of the viscosity is systematically changed. This allows to analyse how different diagnostic diagrams of observable quantities evolve as the α value changes.