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The need for small-scale turbulence in atmospheres of substellar objects
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dc.contributor.author | Helling, Christiane | |
dc.contributor.editor | Kupka, F. | |
dc.contributor.editor | Hillebrandt, W. | |
dc.date.accessioned | 2018-10-29T12:30:06Z | |
dc.date.available | 2018-10-29T12:30:06Z | |
dc.date.issued | 2005-06-09 | |
dc.identifier.citation | Helling , C 2005 , The need for small-scale turbulence in atmospheres of substellar objects . in F Kupka & W Hillebrandt (eds) , Proceedings of the Workshop on "Interdisciplinary Aspects of Turbulence" Ringberg Castle, Tegernsee, Germany, April 18 - 22, 2005 . Max-Planck-Institut für Astrophysik , Garching , pp. 152-158 , Talk at Ringberg workshop on "Interdisciplinary Aspects of Turbulence" , Tegernsee , Bavaria , Germany , 18/04/05 . < http://arxiv.org/abs/astro-ph/0506204v1 > | en |
dc.identifier.citation | workshop | en |
dc.identifier.other | PURE: 256369641 | |
dc.identifier.other | PURE UUID: 44f16143-5c03-43cd-abf5-bc975ab4b205 | |
dc.identifier.other | ArXiv: http://arxiv.org/abs/astro-ph/0506204v1 | |
dc.identifier.uri | https://hdl.handle.net/10023/16350 | |
dc.description.abstract | Brown dwarfs and giant gas planets are substellar objects whose spectral appearance is determined by the chemical composition of the gas and the solids/liquids in the atmosphere. Atmospheres of substellar objects possess two major scale regimes: large-scale convective motions + gravitational settling and small-scale turbulence + dust formation. Turbulence initiates dust formation spot-like on small scale, while the dust feeds back into the turbulent fluid field by its strong radiative cooling. Small, imploding dust containing areas result which eventually become isothermal. Multi-dimensional simulations show that these small-scale dust structures gather into large-scale structures, suggesting the formation of clouds made of dirty dust grains. The chemical composition of the grains, and thereby the chemical evolution of the gas phase, is a function of temperature and depends on the grain's history. | |
dc.format.extent | 7 | |
dc.language.iso | eng | |
dc.publisher | Max-Planck-Institut für Astrophysik | |
dc.relation.ispartof | Proceedings of the Workshop on "Interdisciplinary Aspects of Turbulence" Ringberg Castle, Tegernsee, Germany, April 18 - 22, 2005 | en |
dc.rights | Copyright 2005 the Author. | en |
dc.subject | QB Astronomy | en |
dc.subject | QC Physics | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QC | en |
dc.title | The need for small-scale turbulence in atmospheres of substellar objects | en |
dc.type | Conference item | en |
dc.description.version | Postprint | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. St Andrews Centre for Exoplanet Science | en |
dc.identifier.url | http://adsabs.harvard.edu/abs/2005iat..work.....K | en |
dc.identifier.url | http://arxiv.org/abs/astro-ph/0506204v1 | en |
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