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Large grains can grow in circumstellar discs


Meru, Farzana; Galvagni, Marina; Olczak, Christoph; Garaud, Pascale (2013). Large grains can grow in circumstellar discs. Proceedings of the International Astronomical Union, 8(S299):169-170.

Abstract

We perform coagulation & fragmentation simulations to understand grain growth in T Tauri & brown dwarf discs. We present a physically-motivated approach using a probability distribution function for the collision velocities and separating the deterministic & stochastic velocities. We find growth to larger sizes compared to other models. Furthermore, if brown dwarf discs are scaled-down versions of T Tauri discs (in terms of stellar & disc mass, and disc radius), growth at the same location with respect to the outer edge occurs to similar sizes in both discs

Abstract

We perform coagulation & fragmentation simulations to understand grain growth in T Tauri & brown dwarf discs. We present a physically-motivated approach using a probability distribution function for the collision velocities and separating the deterministic & stochastic velocities. We find growth to larger sizes compared to other models. Furthermore, if brown dwarf discs are scaled-down versions of T Tauri discs (in terms of stellar & disc mass, and disc radius), growth at the same location with respect to the outer edge occurs to similar sizes in both discs

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Additional indexing

Item Type:Journal Article, not_refereed, original work
Communities & Collections:National licences > 142-005
Dewey Decimal Classification:Unspecified
Scopus Subject Areas:Health Sciences > Medicine (miscellaneous)
Physical Sciences > Astronomy and Astrophysics
Health Sciences > Nutrition and Dietetics
Health Sciences > Public Health, Environmental and Occupational Health
Physical Sciences > Space and Planetary Science
Language:English
Date:1 June 2013
Deposited On:19 Oct 2018 17:03
Last Modified:26 Feb 2024 04:44
Publisher:Cambridge University Press
ISSN:1743-9213
OA Status:Hybrid
Publisher DOI:https://doi.org/10.1017/s1743921313008247
  • Content: Published Version
  • Language: English
  • Description: Nationallizenz 142-005