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Atomic data needed for analysis of EUV and X-Ray spectra

  • John C. Raymond
Conference paper
Part of the Lecture Notes in Physics book series (LNP, volume 407)

Abstract

Given high resolution X-ray spectra, one can derive the temperature structure, elemental abundances, density, and in some cases heating or cooling rate of a hot astrophysical plasma. The accuracy of various atomic rate coefficients limits the accuracy of the inferred plasma parameters. The important rates are typically collisional ionization, radiative and dielectronic recombination, collisional excitation, and radiative decay. Of these, dielectronic recombination is often among the most uncertain. Accurate collisional excitation rates are available for strong transitions of simple ions, but a disturbing number of excitation rates are only known to a factor of two.

Keywords

Supernova Remnant Excitation Rate Dielectronic Recombination Atomic Rate Collision Strength 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1992

Authors and Affiliations

  • John C. Raymond
    • 1
  1. 1.Harvard-Smithsonian Center for AstrophysicsUSA

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