| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1772790 | High Energy Density Physics | 2009 | 8 Pages |
Abstract
It is shown that theoretical Rosseland mean opacities are sensitive to spectral line shape models. Due to computational constraints, however, opacity codes typically use Voigt or Lorentz profiles. Both of these profiles have an incorrect far wing behavior that can significantly overestimate the photon absorption. A new line profile is proposed, based on second-order line broadening theory, which is both more physical and relatively fast to compute.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Astronomy and Astrophysics
Authors
C.A. Iglesias, V. Sonnad, B.G. Wilson, J.I. Castor,