Reexamination of the metal contribution to astrophysical opacity

Details Reexamination of the metal contribution to astrophysical opacity Reexamination of the metal contribution to astrophysical opacity

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...322l..45i&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 322, Nov. 1, 1987, p. L45-L48.

Astronomy and Astrophysics

Astrophysics

105

Cepheid Variables, Metallic Plasmas, Opacity, Plasma Radiation, Stellar Models

Scientific paper

Results from a new opacity code are presented which show that the Rosseland mean opacity for metals (atomic number of greater than 2) is significantly larger than the standard opacity for densities and temperatures important to Cepheid models. A large part of the difference is due to an improved treatment of the atomic phsyics. Spectral line broadening effects are found to be important.

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