EAS Publications Series
Volume 58, 2012ECLA - European Conference on Laboratory Astrophysics
|Page(s)||51 - 55|
|Published online||13 February 2013|
C. Stehlé, C. Joblin and L. d’Hendecourt (eds)
EAS Publications Series, 58 (2012) 51-55
Interaction of configuration in spectral opacity calculations for stellar physics
1 SAp/IRFU/DSM, CE
2 ARTEP Ellicott City, MD 21042, USA
3 CEA/IRAMIS/SPAM, 91191 Gif-sur-Yvette, France
4 Present address : Sandia National Laboratories, Albuquerque, NM 87185-1196, USA
5 CEA/DAM/DIF, 91297 Arpajon, France
6 Theoretical Division, LANL, Los Alamos, NM 87545, USA
7 AWE Reading Berkshire, RG7 4PR, UK
8 LULI, École Polytechnique, 91128 Palaiseau, France
9 LERMA, UMR 8112, Observatoire de Paris, UPMC, CNRS, 5 place J. Janssen, 92195 Meudon, France
We discuss the role of Configuration Interaction (CI) and the influence of the number of configurations taken into account in the calculations of nickel and iron spectral opacities provided by the OPAC international collaboration, including statistical approaches (SCO, CASSANDRA, STA), detailed accounting (OPAS, LEDCOP, OP, HULLAC-v9) or hybrid method (SCO-RCG). Opacity calculations are presented for a temperature T of 27.3 eV and a density of 3.4 mg/cm3, conditions relevant for pulsating stellar envelopes.
© The Author(s) 2013
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