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dc.contributor.authorMatthews, Lorin
dc.contributor.authorLand, Victor
dc.contributor.authorHyde, Truell
dc.date.accessioned2011-12-08T21:14:52Z
dc.date.available2011-12-08T21:14:52Z
dc.date.issued2012-01-01
dc.identifier.citationThe Astrophysical Journal, 744:8 (12pp), 2012 January 1en_US
dc.identifier.urihttp://hdl.handle.net/2104/8252
dc.description.abstractCombining a particle–particle, particle–cluster, and cluster–cluster agglomerationmodel with an aggregate charging model, the coagulation and charging of dust particles in plasma environments relevant for protoplanetary disks have been investigated, including the effect of electron depletion in high dust density environments. The results show that charged aggregates tend to grow by adding small particles and clusters to larger particles and clusters, and that cluster–cluster aggregation is significantly more effective than particle–cluster aggregation. Comparisons of the grain structure show that with increasing aggregate charge the compactness factor, φ_σ , decreases and has a narrower distribution, indicating a fluffier structure. Neutral aggregates are more compact, with larger φ_σ , and exhibit a larger variation in fluffiness. Overall, increased aggregate charge leads to larger, fluffier, and more massive aggregates.en_US
dc.language.isoenen
dc.publisherAstrophysical Journalen_US
dc.titleCharging and coagulation of dust in protoplanetary environmentsen_US
dc.typeArticleen
dc.identifier.doi10.1088/0004-637X/744/1/8
dc.description.keywordsdusty plasmaen_US
dc.description.keywordsaggregation of dusten_US
dc.description.keywordsprotoplanetary disken_US
dc.description.keywordsaccretion disksen_US
dc.description.keywordsformation of planets and satellitesen_US
dc.description.keywordsplasmasen_US


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