TL;DR
This paper reviews turbulence in protostellar accretion discs, discussing dead zones, dust-gas coupling, turbulent drag, and magnetic field generation's role in outflows and star-disc interactions.
Contribution
It provides a comprehensive overview of turbulence mechanisms, dead zones, dust coupling, and magnetic fields in protostellar discs, highlighting recent developments and alternative processes.
Findings
Dead zones caused by poor ionization affect turbulence.
Turbulent drag differs from laminar drag in specific regimes.
Magnetic fields are crucial for outflows and star-disc coupling.
Abstract
Aspects of turbulence in protostellar accretion discs are being reviewed. The emergence of dead zones due to poor ionization and alternatives to the magneto-rotational instability are discussed. The coupling between dust and gas in protostellar accretion discs is explained and turbulent drag is compared with laminar drag in the Stokes and Epstein regimes. Finally, the significance of magnetic field generation in turbulent discs is emphasized in connection with driving outflows and with star-disc coupling.
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