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Multiplicity, warps and infall: How disturbances drive disc evolution

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If you have a question about this talk, please contact Loren E. Held .

A clear takeaway from recent observations of protostellar discs is that a large fraction of them show signs of environmental interaction, in the form of large scale spiral arms, infalling streamers or compact dust discs. I will discuss our attempts to explain various aspects of disc morphology from simple theoretical models and what I think it is telling us about the overall picture of how protostellar discs evolve. I will also reflect on the 50-year-old question on the source of “viscosity” in protostellar discs.

This talk is part of the DAMTP Astrophysics Seminars series.

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