What question did this study set out to answer?

This research aims to understand how the vertical shear and streaming instabilities affect dust diffusion in protoplanetary disks separately and together.

February 5, 2026

The coexistence of the streaming instability and the vertical shear instability in protoplanetary disks

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Authors

LBLuc Boulangé AJAnders Johansen MFMario FlockMax Planck Institute for Astronomy

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Implication

Modeling investigates how vertical shear and streaming instabilities impact dust diffusion in protoplanetary disks, suggesting significant interactions.

Key Points

This research aims to understand how the vertical shear and streaming instabilities affect dust diffusion in protoplanetary disks separately and together.
Utilized two-dimensional global models to simulate vertical shear and streaming instabilities
Analyzed dust diffusion patterns under both instabilities alone and in combination
Compared the findings with previously published three-dimensional simulations
Vertical shear instability induces stronger vertical dust diffusion compared to streaming instability
Streaming instability results in only marginal scale dependence, creating a Gaussian-shaped dust layer
Combined modeling shows an undulating dust layer broadened by streaming instability's intrinsic diffusion level

Cite This Study

Boulangé et al. (2025) studied this question.

synapsesocial.com/papers/6984343ff1d9ada3c1fb2282 https://doi.org/10.1051/0004-6361/202453439/pdf

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Implication

Modeling investigates how vertical shear and streaming instabilities impact dust diffusion in protoplanetary disks, suggesting significant interactions.

The coexistence of the streaming instability and the vertical shear instability in protoplanetary disks

Discussion

Member takes

Implication

Key Points

Cite This Study

The coexistence of the streaming instability and the vertical shear instability in protoplanetary disks

Discussion

Member takes

Implication

Key Points

Cite This Study

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