A New Detailed Term Accounting Opacity Code: TOPAZ

Details A New Detailed Term Accounting Opacity Code: TOPAZ A New Detailed Term Accounting Opacity Code: TOPAZ

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aipc..730..161i&link_type=abstract

ATOMIC PROCESSES IN PLASMAS: 14th APS Topical Conference on Atomic Processes in Plasmas. AIP Conference Proceedings, Volume 730

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Magnetohydrodynamics And Plasmas, Atomic And Molecular Data, Spectra, And Spectral Parameters

Scientific paper

A new opacity code, TOPAZ, which explicitly includes configuration term structure in the bound-bound transitions is being developed. The goal is to extend the current capabilities of detailed term accounting opacity codes such as OPAL that are limited to lighter elements of astrophysical interest. At present, opacity calculations of heavier elements use statistical methods that rely on the presence of myriad spectral lines for accuracy. However, statistical approaches have been shown to be inadequate for astrophysical opacity calculations. An application of the TOPAZ code will be to study the limits of statistical methods. Comparisons of TOPAZ to other opacity codes as well as to experiments are presented.

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