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HERACLES: a three dimensional radiation hydrodynamics code

Published online by Cambridge University Press:  08 March 2006

Ph. Stee ,
E. Audit  and
M. González
E. Audit
Affiliation:
CEA-Saclay, DSM/DAPNIA/Service d'Astrophysique, 91191 Gif-sur-Yvette Cedex, France AIM, Unité Mixte de Recherche CEA, CNRS, Université Paris VII, UMR No. 7158, France
M. González
Affiliation:
CEA-Saclay, DSM/DAPNIA/Service d'Astrophysique, 91191 Gif-sur-Yvette Cedex, France AIM, Unité Mixte de Recherche CEA, CNRS, Université Paris VII, UMR No. 7158, France
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Abstract

HERACLES is a new code that solve the radiative transfer coupled tothe hydrodynamics. The radiation is describe by a moment model usingthe M1 closure relation which allow to preserve large angularanisotropy in the radiation field. We present here the model, itsnumerical implementation and some test cases. The tests and thecomparison with other methods show the good accuracy of our model invarious situations. The results show that HERACLES is accurate inboth the diffusion and the transport limit and could therefor be usedin various astrophysical fields such as radiative shocks,fragmentation and formation of dense cores in the interstellar medium,protoplanetary discs, jets...

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 18: Radiative Transfer and Applications to Very Large Telescopes , 2006 , pp. 115 - 128
Copyright
© EAS, EDP Sciences, 2006

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