The Role of Theoretical Atomic Physics in Astrophysical Plasma Modeling

Statistics – Computation

Scientific paper

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Scientific paper

The interpretation of cosmic spectra relies on a vast sea of atomic data which are not readily obtainable from analytic expressions or simple calculations. Since experimental determination of the multitude of atomic excitation, ionization, and recombination rates is clearly impossible, theoretical calculations are required for all transitions of all ionization stages of all elements through the iron peak elements, and to achieve the accuracy necessary for interpreting the most recently observed, high-resolution spectra, state-of-the-art atomic theoretical techniques need to be used. In this talk, I will give an overview of the latest status of the theoretical treatments of atomic processes in astrophysical plasmas, including a description of the available atomic databases. The successes of atomic theory, as assessed by benchmarking computational results with experimental measurements, where available, will be discussed as well as the present challenges facing the theoretical atomic laboratory astrophysics community.

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