About Us


TOPbase contains the most complete dataset of LS-coupling term energies, f-values and photoionization cross sections for astrophysical abundant ions (Z=1-26) that is currently available. They have been computed in the close-coupling approximation by means of the R-matrix method with innovative asymptotic techniques. In most cases the accuracy of the data is comparable with that obtained by other state-of-the-art atomic physics numerical approaches. TOPbase also contains large datasets of f-values for ions of Fe with configurations 3sx3py3dz, referred to as the PLUS-data , computed with the atomic structure code SUPERSTRUCTURE .

  • Contact-


    Scientific manager: Franck Delahaye (franck.delahaye[at]obspm.fr)

    Technical manager: Nicolas Moreau (nicolas.moreau[at]obspm.fr)