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Departures from lte in chemically stratified atmospheres

  • R. Monier, B. Smalley, G. Wahlgren, Ph. Stee and L. Mashonkina (a1)...


Two astrophysical problems are reviewed where non-LTE line formation for the selected atoms is considered in a chemically stratified atmosphere and this leads to better interpretation of observed data. These are an origin of the Mn ii emission lines in the 3He and HgMn stars and a violation of the ionization equilibrium between the second and first ions of rare-earth elements in rapidly oscillating chemically peculiar stars.



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[1] Aldenius, M., 2001, Master Thesis, Department of Physics, Univ. of Lund
[2]Blaise, J.,Wyart, J.-F.,Djerad, M.T., & Ahmed, Z.B., 1984, Phys. Scripta, 29, 119
[3] Butler, K., & Giddings, J., 1985, Newsletter on the analysis of astronomical spectra No. 9, University of London
[4] Carlsson, M., 1992, ASP Conf. Ser., 26, Cool Stars, Stellar Systems, and the Sun, ed. M.S. Giampap, & J.A. Bookbinder (San Francisco: ASP), 499
[5]Carlsson, M.,Rutten, R.J., & Shchukina, N.G., 1992, A&A, 253, 567
[6] Cowan, R.D., 1981, The Theory of Atomic Structure and Spectra (Univ. of California Press. Berkeley. California, USA)
[7]Cowley, C.R., & Bord, D.J., 1998, ASP Conf. Ser., 143, 346
[8]Fuhrmann, K.,Pfeiffer, M.,Frank, C., et al., 1997, A&A, 323, 909
[9] LeBlanc, F., Monin, D., 2004, The A-Star Puzzle, IAUS 224, ed. J. Zverko, W.W. Weiss, J. Žižňovský, & S.J. Adelman, 193
[10] Martin, W.C., Zalubas, R., & Hagan, L., 1978, Atomic energy levels - The Rare Earth Elements. NSRDS-NBS 60, U.S. Gov. Print. Off., Washington, 1978
[11]Mashonkina, L., 2010, EAS Publ. Ser., 43, 135
[12]Mashonkina, L.,Ryabchikova, T.A., & Ryabtsev, A.N., 2005, A&A, 441, 309
[13]Michaud, G., 1970, ApJ, 160, 641
[14] Ryabchikova, T.A., Savanov, I.S., Malanushenko, V.P., & Kudryavtsev, D.O., 2001, Astron. Rep., 45, 382
[15]Ryabchikova, T.,Piskunov, N.,Kochukhov, O., et al., 2002, A&A, 384, 545
[16]Rybicki, G.B., & Hummer, D.G., 1991, A&A, 245, 171
[17]Rybicki, G.B., & Hummer, D.G., 1992, A&A, 262, 209
[18]Sigut, T.A.A., 2001, ApJ, 546, L115
[19] Wade, G.A., Leblanc, F., Ryabchikova, T.A., & Kudryavtsev, D., 2003, in Modelling of Stellar Atmospheres, Poster Contributions. Proc. 210 Symp. IAU, Uppsala, Sweden, 17-21 June, 2002, ed. N. Piskunov, W.W. Weiss, & D.F. Gray. Published on behalf of the IAU by the Astronomical Society of the Pacific, D7


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