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Streaming Instability: Born Again

Presentation #622.02 in the session Protoplanetary Disks - Theory.

Published onApr 03, 2024
Streaming Instability: Born Again

The ‘streaming instability’ (SI) between dust and gas in protoplanetary disks is the leading mechanism to form planetesimals — the building blocks of planets. However, the simplicity of the SI is challenged by the complex physics involved in a realistic protoplanetary disk. I describe how turbulence, disk structure, and thermodynamics can hinder the SI; but also how accretion flows and magnetic fields can revive it in modified forms, which injects new hope into planet formation.

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