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The study aims to explore how dust influences vortices and analyze the streaming instability in planetary formation.

The effect of dust on vortices II: Streaming instabilities

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The study aims to explore how dust influences vortices and analyze the streaming instability in planetary formation.
Conducted a linear stability analysis using dusty vortex models as background flows.
Developed an analogue of the shearing box that follows vortex streamlines.
Studied the propagation of small wavelength perturbations in vortices.
Inertial waves and dust density waves were found to propagate in vortices, showing non-sinusoidal time behavior.
A similar form of the streaming instability was identified in vortices, supporting the theory of vortex-induced planetesimal formation.
Provided insights into the nature of unstable modes and extended resonant drag instability theory to non-modal waves.

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This analysis investigates streaming instabilities in vortices due to backreacting dust, suggesting implications for planet formation.

Magnan et al. (2026) studied this question.

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