Mathematics
Scientific paper
Aug 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994jqsrt..52..127i&link_type=abstract
Journal of Quantitative Spectroscopy & Radiative Transfer (ISSN 0022-4073), vol. 52, no. 2, p. 127-136
Mathematics
8
Atomic Spectra, Computerized Simulation, Electron Transitions, Mathematical Models, Opacity, Aluminum, Approximation, Computer Programs, Iron, Statistical Analysis
Scientific paper
The most significant improvement in radiative opacity codes in recent years has been advances in atomic data incorporated in the models. In particular, the configuration term structure, which significantly increases the amount of atomic data in the calculations, is now explicitly included for elements with low atomic number. For large atomic number, where explicit calculations are impractical, clever methods have been developed that conserve a few properties of the transition arrays rather than attempt to reproduce the detailed spectrum. There are, however, conditions where neglecting the resolved character of the transition arrays leads to large errors, but for which explicit calculations are either costly or impractical. Here, we test recently developed methods for statisically simulating resolved transition arrays. When possible, the results are compared to explicit calculations and experiments.
Iglesias Carlos A.
Wilson Brian G.
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