The Iron Project and the Rmax Network

Details The Iron Project and the Rmax Network The Iron Project and the Rmax Network

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..dmp.j6055z&link_type=abstract

American Physical Society, 2002 Division of Atomic, Molecular and Optical , abstract #J6.055

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The Iron Project is devoted to the development of theoretical and computational methods for large-scale and accurate computations for atomic systems and processes of technological and astrophysical importance. The primary emphasis is on the complex ions of Fe and the iron group Ti --- Zn. The RmaX Network focuses particularly on highly charged ions of interest in X-ray astronomy. The calculations are carried out using the extensive set of Breit-Pauli R-matrix codes, adapted for relativistic close coupling calculations for electron impact excitation, photoionization, electron-ion recombination, and transition probabilities. We describe in particular the recent and ongoing calculations by the Ohio State group for these processes and their applications in laboratory and astrophysical plasmas. Among these applications is the computation of predicted spectra from non-local-thermodynamic-equilibrium (NLTE) models including precise radiative transfer utilising the Iron Project data. Numerical simulation of Fe II spectra in the UV/O/IR wavelength ranges will be presented. Other works include photoionization and recombination of Ni II. The RmaX Network focuses particularly on highly charged ions of interest in X-ray astronomy. New results on He-like O VII and computed spectra will be presented. Partial support from the NSF and NASA is acknowledged.

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