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Non-LTE Model Atom Construction

Published online by Cambridge University Press:  16 November 2010

R. Monier ,
B. Smalley ,
G. Wahlgren ,
Ph. Stee  and
N. Przybilla
N. Przybilla*
Affiliation:
Dr. Remeis-Sternwarte Bamberg & ECAP, Astronomisches Institut der Universität Erlangen-Nürnberg, Sternwartstrasse 7, 96049 Bamberg, Germany
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Abstract

Model atoms are an integral part in the solution of non-LTE problems. They comprise the atomic input data that are used to specify the statistical equilibrium equations and the opacities and emissivities of radiative transfer. A realistic implementation of the structure and the processes governing the quantum-mechanical system of an atom is decisive for the successful modelling of observed spectra. We provide guidelines and suggestions for the construction of robust and comprehensive model atoms as required in non-LTE line-formation computations for stellar atmospheres. Emphasis is given on the use of standard stars for testing model atoms under a wide range of plasma conditions.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 43: Non-LTE Line Formation for Trace Elements in Stellar Atmospheres , 2010 , pp. 115 - 133
Copyright
© EAS, EDP Sciences 2010

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References

Allen, C., 1973, “Astrophysical Quantities”, 3rd edn. (Athlone Press: London)
Anderson, L.S., 1989, ApJ, 339, 558 CrossRef
Arnaud, M., & Rothenflug, R., 1985, A&AS, 60, 425
Auer, L., & Mihalas, D., 1973, ApJ, 184, 151 CrossRef
Badnell, N.R., O’Mullane, M.G.,Summers, H.P., et al., 2003, A&A, 406, 1151
Barklem, P.S., 2007, A&A, 466, 327
Baschek, B.,Scholz, M., & Sedlmayr, E., 1977, A&A, 55, 375
Belyaev, A.K.,Grosser, J.,Hahne, J., & Menzel, T., 1999, Phys. Rev. A, 60, 2151 CrossRef
Belyaev, A.K., & Barklem, P.S., 2003, Phys. Rev. A, 68, 062703 CrossRef
Belyaev, A.K.,Barklem, P.S.,Dickinson, A.S., & Gadéa, F.X., 2010, Phys. Rev. A, 81, 032706 CrossRef
Bray, I.,Fursa, D.V.,Kheifets, A.S., & Stelbovics, A.T., 2002, J. Phys. B, 35, R117 CrossRef
De Marco, O.,Storey, P.J., & Barlow, M.J., 1998, MNRAS, 297, 999 CrossRef
Drawin, H.W., 1961, Z. Physik, 164, 513 CrossRef
Drawin, H.W., 1968, Z. Physik, 211, 404 CrossRef
Drawin, H.W., 1969, Z. Physik, 225, 483 CrossRef
Fabbian, D.,Asplund, M.,Barklem, P.S., et al., 2009, A&A, 500, 1221
Fleck, I.,Grosser, J.,Schnecke, A., et al., 1991, J. Phys. B, 24, 4017 CrossRef
FroeseFischer, C., & Tachiev, G., 2004, At. Data Nucl. Data Tables, 87, 1 CrossRef
Hummer, D.G., Berrington, K.A., Eissner, W., et al., 1993, A&A, 279, 298
Kjeldsen, H., 2006, J. Phys. B, 39, R325 CrossRef
Kurucz, R.L., 2006, EAS Pub. Ser., 18, 129 CrossRef
Mashonkina, L.J., 1996, in “Model Atmospheres and Spectrum Synthesis”, ed. S.J. Adelman, F. Kupka, & W.W. Weiss (ASP: San Francisco), 140
Mihalas, D., 1972, ApJ, 177, 115 CrossRef
Mihalas, D., 1978, “Stellar Atmospheres”, 2nd ed. (W.H. Freeman & Co: San Francisco)
Nahar, S., & Pradhan, A., 1997, ApJS, 111, 339 CrossRef
Nahar, S., 2002, At. Data Nucl. Data Tables, 80, 205 CrossRef
Nieva, M.F., & Przybilla, N., 2006, ApJ, 639, L39 CrossRef
Nieva, M.F., & Przybilla, N., 2008, A&A, 481, 199 (NP08)
Przybilla, N., & Butler, K., 2004, ApJ, 609, 1181 CrossRef
Przybilla, N.,Butler, K.,Becker, S.R., et al., 2000, A&A, 359, 1085
Przybilla, N.,Butler, K.,Becker, S.R., & Kudritzki, R.P., 2001, A&A, 369, 1009
Przybilla, N.,Butler, K.,Heber, U., & Jeffery, C.S., 2005, A&A, 443, L25
Przybilla, N.,Nieva, M.F., & Edelmann, H., 2006a, Balt. Astron., 15, 107
Przybilla, N.,Nieva, M.F.,Heber, U., & Jeffery, C.S., 2006b, Balt. Astron., 15, 163
Seaton, M.J., 1962, in “Atomic and Molecular Processes” (Academic Press: New York)
Seaton, M.J., 1987, J. Phys. B, 20, 6363 CrossRef
Seaton, M.J., Yu, Y., Mihalas, D., & Pradhan A.K., 1994, MNRAS, 266, 805 CrossRef
Sigut, T.A.A., 1996, ApJ, 473, 452 CrossRef
Steenbock, W., & Holweger, H., 1984, A&A, 130, 319
Takeda, Y., 1991, A&A, 242, 455
Van Regemorter, H., 1962, ApJ, 136, 906 CrossRef
Williams, I.D., 1999, Rep. Prog. Phys., 62, 1431 CrossRef
Wilson, N.J.,Bell, K.L., & Hudson, C.E., 2005, A&A, 432, 731
Yan, Y., & Seaton, M.J., 1987, J. Phys. B, 20, 6409 CrossRef
Yan, Y.,Taylor, K.T., & Seaton, M.J., 1987, J. Phys. B, 20, 6399 CrossRef