Expect the unexpected : non-equilibrium processes in brown dwarf atmospheres
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Brown Dwarf atmosphere are a chemically extremely rich, one example being the formation of clouds driven by the phase-non-equilibrium of the atmospheric gas. Cloud formation modelling is an integral part of any atmosphere simulation used to interpret spectral observations of ultra-cool objects and to determine fundamental parameters like log(g) and Teff. This proceeding to the workshop 'GAIA and the Unseen: The Brown Dwarf Question' first summarizes what a model atmosphere simulation is, and then advocates two ideas: A) The use of a multitude of model families to determine fundamental parameters with realistic confidence interval. B) To keep an eye on the unexpected, like for example, ionisation signatures resulting plasma processes
Helling , C 2014 , ' Expect the unexpected : non-equilibrium processes in brown dwarf atmospheres ' , Memorie della Società Astronomica Italiana , vol. 85 , no. 4 , pp. 695-698 .
Memorie della Società Astronomica Italiana
Copyright SAIt 2014. Reproduced with permission by the publisher. This document may differ slightly from the final published version. The final published version of this work is available at http://sait.oats.inaf.it/MSAIt850414/PDF/2014MmSAI..85..695H.pdf
DescriptionChH highlights financial support of the European Community under the FP7 by an ERC starting grant 257341
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