Expect the unexpected : non-equilibrium processes in brown dwarf atmospheres
Abstract
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
Citation
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 .
Publication
Memorie della Società Astronomica Italiana
Status
Peer reviewed
Type
Journal article
Description
ChH highlights financial support of the European Community under the FP7 by an ERC starting grant 257341Collections
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