EPJ Web of Conferences
Volume 43, 201340th Liège International Astrophysical Colloquium. Ageing Low Mass Stars: From Red Giants to White Dwarfs
|Number of page(s)
|21 March 2013
News from the opacity consortium OPAC
CEA/IRFU/Service d'Astrophysique, CE Saclay 91191 Gif-sur-Yvette Cedex, France
a e-mail: sylvaine.turck-chièze@cea.fr
The international OPAC consortium (see list below) was formed three years ago. It is composed of astrophysicists, plasma physicists and experimentalists from different laboratoriesb. This consortium examines specific opacity calculations used in stellar physics. They contribute to solve the problems suggested by the astrophysical community in performing new calculations and new experiments with laser installation. We show here the specific example of the iron opacity peak that plays an important role in the envelope of intermediate-mass and massive stars and we present our first conclusions on iron and nickel.
Members of the consortium OPAC at mid 2012: S. Turck-Chièze (PI), C. Blancard, T. Caillaud, P. Cosse, T. Blenski, J. E. Ducret, J. Farriaut, G. Faussurier, D. Gilles, F. Gilleron, G. Loisel, L. Piau, J. C. Pain, M. Poirier, C. Reverdin, V. Silvert, F. Thais, B. Villette from CEA, France. F. Delahaye, C. Zeippen from Obs. Meudon, France. S. Bastiani from Ecole Polytechnique, France. M. Busquet from ARTEP, USA, J. Guzik, D.P. Kilcrease, N.H. Magee from Los Alamos, USA and J. W. Harris from AWE, England.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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