2000/02/17 by Anil K. Pradhan, Pradhan, Anil K.
Engineering · Physics and Astronomy · #Astrophysics (astro-ph) #Atomic Physics (physics.atom-ph) #Atomic and Molecular Physics #FOS: Physical sciences #Laser-induced spectroscopy and plasma #X-ray Spectroscopy and Fluorescence Analysis #astro-ph #physics.atom-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0002356
7 pagee, 2 figures. In Proceedings of the Symposium on Atomic Data Needs For X-Ray Astronomy, NASA GSFC, Dec. 16-17, 1999
arxiv created 2000/02/17 · openalex publication_date 2000/02/17 · arxiv updated 2009/12/01 · openalex created_date 2024/04/10 · openalex updated_date 2026/07/28
Recent advances in theoretical atomic physics have enabled large-scale calculation of atomic parameters for a variety of atomic processes with high degree of precision. The development and application of these methods is the aim of the Iron Project. At present the primary focus is on collisional processes for all ions of iron, Fe I- FeXXVI, and other iron-peak elements; new work on radiative processes has also been initiated. Varied applications of the Iron Project work to X-ray astronomy are discussed, and more general applications to other spectral ranges are pointed out. The IP work forms the basis for more specialized projects such as the RMaX Project, and the work on photoionization/recombination, and aims to provide a comprehensive and self-consistent set of accurate collsional and radiative cross sections, and transition probabilities, within the framework of relativistic close coupling formulation using the Breit-Pauli R-Matrix method. An illustrative example is presented of how the IP data may be utilised in the formation of X-ray spectra of the Kα complex at 6.7 keV from He-like Fe XXV.