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Streaming instability

In planetary science a streaming instability is a hypothetical mechanism for the formation of planetesimals in which the drag felt by solid particles orbiting in a gas disk leads to their spontaneous concentration into clumps which can gravitationally collapse. Small initial clumps increase the orbital velocity of the gas, slowing radial drift locally…

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Overview

Background

Description

Requirements

Alternatives

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Map overview Semantic statistics

Streaming instability

Nodes60
Edges59
Triples29
Avg. degree1.97
Density0.033333
Components1

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Streaming instability

Top relations

related to Requirements · 20
Streaming instability → As, At, AU, Coriolis, If, In, Moderately, Reaching, Small, Solar, Solar System, Stars, Stokes, Streaming, The, The Coriolis, The Stokes, These, This, When
is a · 1
Streaming instability → hypothetical mechanism for the formation of planetesimals in which the drag felt by solid particles orbiting in a gas disk leads to their spontaneous concentration into clumps w…
related to External links · 1
Streaming instability → Numerical Simulation

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Important terminology

gas solids growth may planetesimals disk particles solid turbulence pressure streaming formation radial also drift due instabilities larger small form

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Streaming instabilityis ahypothetical mechanism for the formation of planetesimals in which the drag felt by solid particles orbiting in a gas disk leads to their spontaneous concentration into clumps w…0.90text
100 km asteroid that form from a mixture of pebblesinstance oflowering the porosity and increasing the density of the larger objects0.80text
pebble fragmentsinstance oflowering the porosity and increasing the density of the larger objects0.80text
planetesimals are weakly coupledinstance oflarge bodies0.80text
orbit largely unaffected by the gasinstance oflarge bodies0.80text
conglomerates of chondrules may be necessaryinstance ofindicates that larger objects0.80text
that the concentrations produced from chondrules may instead act as the seeds of streaming instabilities.Icy particles are more likely to stickinstance ofindicates that larger objects0.80text
to resist compression in collisions which may allow the growth of large porous bodiesinstance ofindicates that larger objects0.80text
Streaming instabilityrelated to External linksNumerical Simulation0.60section
Streaming instabilityrelated to RequirementsStreaming0.60section
Streaming instabilityrelated to RequirementsThe0.60section
Streaming instabilityrelated to RequirementsThe Coriolis0.60section

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