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Title:
Radiative atomic Rosseland mean opacity tables
Authors:
Rogers, Forrest J.; Iglesias, Carlos A.
Affiliation:
AA(Lawrence Livermore National Laboratory, Livermore, CA), AB(Lawrence Livermore National Laboratory, Livermore, CA)
Publication:
Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 79, no. 2, April 1992, p. 507-568. (ApJS Homepage)
Publication Date:
04/1992
Category:
Atomic and Molecular Physics
Origin:
STI
NASA/STI Keywords:
Atomic Spectra, Opacity, Radiative Transfer, Stellar Composition, Stellar Envelopes, Stellar Interiors, Abundance, Equations Of State, Metallicity, Stellar Atmospheres
DOI:
10.1086/191659
Bibliographic Code:
1992ApJS...79..507R

Abstract

New radiative Rosseland mean opacity tables calculated with the OPAL code are presented. Extensive results are given for the recent mixture of Anders-Grevesse (1989) which allow accurate interpolation in temperature, density, hydrogen mass fraction, and metal mass fraction. The range of the constant R and temperature are such as to cover typical stellar conditions from the interior through the envelope and the hotter atmospheres. For comparison purposes, some opacity table for the Ross-Aller and Cox-Tabor metal abundances are presented. Although in many regions the OPAL opacities are similar to previous work, significant differences are reported. For example, factors of 2-3 opacity enhancements are found in stellar envelope conditions.

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