From accurate atomic data to astrophysical modeling
Franck DELAHAYE
Observatoire de Paris/LERMA
Résumé :
Complex simulations are central in a growing number of scientific fields
such as astrophysics,laboratory astrophysics or inertial fusion science.
The predictions of such models are strongly correlated to the
quality/completeness of the atomic data they are using. In order to
fully understand many physical phenomenon such as the solar evolution,
supernovae explosion, the simulation of radiative shock or the
interpretation of laser experiments, reliable atomic data, and in
particular opacities, are needed.
However, providing the data is not enough anymore. It is necessary to be
able to qualify them, quantify the uncertainties attached so one can
propagate them into the simulation. Diagnostic tools must be developed
to allow users/producers to choose/analyze the data they need/provide.
And finally a suitable set of services must be provided in order to
allow a large ensemble of the scientific community to access and test
these data for use/validation/improvement.
I will present some results of stellar application in order to outline
the importance of the atomic data and present different activities we
are developing in order to fulfill the needs of the users/producers.
