Advertisement

What Do We Do when Models Don’t Fit? On Model Atmospheres and Real Stellar Spectra

  • Bengt Gustafsson
Conference paper
Part of the International Astronomical Union / Union Astronomique Internationale book series (IAUS, volume 189)

Abstract

Developments in the modelling of stellar atmospheres and results from the confrontation between calculated and observed fluxes and spectra are discussed. It is argued that, although impressive advances in the study of O-type, WR and cool star spectra have recently occurred, significant improvements should be possible with already existing methods in the analysis of, e.g., solar-type stars.

Keywords

Model Atmosphere Local Thermodynamic Equilibrium Stellar Atmosphere Carbon Star Cool Star 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Allard, F. and Hauschildt, P.H.. (1995) ApJ 445, 433ADSCrossRefGoogle Scholar
  2. Allard, F., Laylor, L., Alexander, D.R., Hauschildt, P.H. (1994) BARS 187, 10311Google Scholar
  3. Anderson, L.S. (1989) ApJ 339, 558ADSCrossRefGoogle Scholar
  4. Anderson, L. (1991), in Crivellari et al. (1991), p. 29Google Scholar
  5. Ardeberg, A., Gustafsson, B., Linde, P., Nissen, P.E. (1997), A&A, in pressGoogle Scholar
  6. Asplund, M. and Gustafsson, B. (1996) Hydrogen-deficient stars, C.S. Jeffery & U. Heber (eds.), ASP Conf. Ser. Vol. 96, 39Google Scholar
  7. Asplund, M., Gustafsson, B., Kiselman, D., Eriksson, K. (1997) A&A 318, 521ADSGoogle Scholar
  8. Avrett, E.H. (1996) in Strassmeier & Linsky (1966), p. 503Google Scholar
  9. Bell, R.A., Paltoglou, G. and Tripicco, M.J. (1994) MNRAS 268, 771ADSGoogle Scholar
  10. Berniman, G.B. and Reid, N. (1987) MNRAS 227, 315ADSGoogle Scholar
  11. Bessell, M., Castelli, F. and Plez, B. (1997), in preparationGoogle Scholar
  12. Blackwell, D.E., Lynas-Gray, A.E., Smith, G. (1995) A&A 296 217ADSGoogle Scholar
  13. Brett, J.M. and Plez, B. (1993) Proc. ASA 10, 250ADSGoogle Scholar
  14. Castelli, F. and Kurucz, R.F. (1994) A&A 281, 817ADSGoogle Scholar
  15. Crivellari, L., Hubeng, I., Hummer, D.G. (eds.) (1991) Stellar Atmospheres: Beyond Classical Models, NATO ASI Series, Vol. 341 Google Scholar
  16. Dravins, D. and Nordlund, A. (1990a) A&A 228, 184Google Scholar
  17. Dravins, D. and Nordlund, A. (1990b) A&A 228, 203ADSGoogle Scholar
  18. Dreizler, S. and Werner, K. (1993) A&A 278, 199ADSGoogle Scholar
  19. Edvardsson, B., Andersen, J., Gustafsson, B. et al. (1993) A&A 275, 101ADSGoogle Scholar
  20. Eriksson, K., Gustafsson, B., Jorgensen, U.G., Nordlund, A. (1984) A&A 132, 37ADSGoogle Scholar
  21. Frandsen, S. (1974) A&A 37, 139ADSGoogle Scholar
  22. Freytag, B., Ludwig, H.-G. and Steffen, M. (1996) A&A 313, 497ADSGoogle Scholar
  23. Fuhrmann, K., Axer, M., Gehren, T. (1993) A&A 271, 451ADSGoogle Scholar
  24. Fuhrmann, K., Axer. M., Gehren, T. (1994) A&A 285, 585MathSciNetADSGoogle Scholar
  25. Gabler, R., Gabler, A., Kudritzki, R.P., Puls, J. and Pauldrach, A. (1989) A&A 226, 162ADSGoogle Scholar
  26. Gabler, R., Kudritzki, R.P. and Mendez, R.H. (1991) A&A 245, 587ADSGoogle Scholar
  27. Gabler, R., Gabler, A., Kudritzki, R.P. and Mendez, R.H. (1992) A&A 265, 656ADSGoogle Scholar
  28. Gigas, D. (1986) A&A 165, 170ADSGoogle Scholar
  29. Gigas, D. (1988) A&A 192, 264ADSGoogle Scholar
  30. Gratton, R.G., Caretta, E., Castelli, F. (1996) A&A 314, 191ADSGoogle Scholar
  31. Gulliver, A.F., Hill, G., Adelman, S.J. (1994) ApJ 429, L81ADSCrossRefGoogle Scholar
  32. Gustafsson, B. (1995) Astrophysical Applications of Powerful New Databases, S.J. Adelman & W.L. Wiese (eds.), ASP Conf. Ser. Vol. 78, 347Google Scholar
  33. Gustafsson, B. and Asplund, М. (1996) Hydrogen-deficient stars, C.S. Jeffery & U. Heber (eds.), ASP Conf. Ser. Vol. 96, 27Google Scholar
  34. Gustafsson, B., Bell, R.A., Eriksson, K., Nordlund, A. (1975) A&A 42, 407ADSGoogle Scholar
  35. Gustafsson, B. and Jorgensen, U.G. (1985) Calibration of Fundamental Stellar Quantities, Proc. IAU Symp. Vol. 111, D.S. Hayes et al. (eds), D. Reidel Publ. Co.,p. 303Google Scholar
  36. Gustafsson, B. and Jorgensen, U.G. (1994) A&AR 6, 19ADSCrossRefGoogle Scholar
  37. Haas, S., Dreizier, S., Heber, U., Jeffery, S. and Werner, K. (1996) A&A 311, 669ADSGoogle Scholar
  38. Hamann, W.-R. (1995) Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution,Proc. IAU Symp. Vol. 163, K.A. van der Hucht, P.M. Williams (eds.), Kluwer, p. 105CrossRefGoogle Scholar
  39. Henyey, L., Vardya, M.S., Bodenheimer, P. (1965) ApJ 142, 841ADSCrossRefGoogle Scholar
  40. Hillier, D.J. (1995) Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution, Proc. IAU Symp. Vol. 163, K.A. van der Hucht, P.M. Williams (eds.), Kluwer, p. 116CrossRefGoogle Scholar
  41. Hubeny, I. and Lanz, T. (1995) A&A 439, 875ADSGoogle Scholar
  42. Huenerth, G and Ulmschneider, P. (1995) A&A 293, 166ADSGoogle Scholar
  43. Jorgensen, U.G. (1989) ApJ 344, 901ADSCrossRefGoogle Scholar
  44. Jorgensen, U.G. (1997) Molecules in Astrophysics, E. van Dieshoeck (ed.), Kluwer Academic Publ., in pressGoogle Scholar
  45. Jorgensen, U.G., Johnson, H.R., Nordlund, A. (1992) A&A 261, 263ADSGoogle Scholar
  46. Jones, H.R., Longmore, A.J., Allard, F. et al. (1995) MNRAS 277, 767ADSGoogle Scholar
  47. Jones, H.R., Longmore, A.J., Allard, F., Huscildt, P.H. (1996) MNRAS 280, 77ADSCrossRefGoogle Scholar
  48. Kurucz, R.L. (1992) Rev. Mex. Astron. Astrof. 23, 181ADSGoogle Scholar
  49. Kurucz, R.L. (1995) Astrophysical Applications of Powerful New Databases,S.J. Adelman & W.L. Wiese (eds.), ASP Conf. Ser. Vol. 78, 205Google Scholar
  50. Lambert, D.L., Gustafsson, B., Eriksson, K., Hinkle, K. (1986) ApJS 62, 673ADSCrossRefGoogle Scholar
  51. Lambert, D.L., Rao, K.W., Asplund, M., Gustafsson, B. (1997), in preparationGoogle Scholar
  52. Leggett, S.K., Allard, F., Berriman, G. et al. (1996) ApJS 104, 117ADSCrossRefGoogle Scholar
  53. Lemke, M., Venn, K.A. (1994) A&A 309, 558ADSGoogle Scholar
  54. Nissen, P.E., Gustafsson, B., Edvardsson, B., Gilmore, G. (1994) A&A 285, 440ADSGoogle Scholar
  55. Nordlund, A. (1982) A&A 107, 1ADSzbMATHGoogle Scholar
  56. Nordlund, A. and Dravins, D. (1990) A&A 228, 115ADSGoogle Scholar
  57. Nordlund, A. and Stein, R.F. (1995), in Stellar Evolution: What Should Be Done, Proc. 32nd Liege Int. Astroph. Coll, p. 75.Google Scholar
  58. Ohnaka, K. and Tsuji, T. (1996) A&A 310, 933ADSGoogle Scholar
  59. Pauldrach, A., Feldmeier, A., Puls, J. and Kudritzki, R. (1993) Space Sci. Rev. 66, 105ADSCrossRefGoogle Scholar
  60. Pauldrach, A., Kudritzki, R.P., Puls, J. et al. (1994) A&A 283, 525ADSGoogle Scholar
  61. Piskunov, N.E., Kupka, F., Ryabchikova, T.A. et al. (1995) A&AS 112, 525ADSGoogle Scholar
  62. Plez, B., Brett, J.M., Nordlund, A. (1992) A&A 256, 551ADSGoogle Scholar
  63. Rast, M.P., Nordlund, A., Stein, R. and Toomre, J. (1993) ApJ 408, L53ADSCrossRefGoogle Scholar
  64. Rentzsch-Holm, I. (1996) A&A, 305, 275ADSGoogle Scholar
  65. Schaerer, D., Schmutz, W. (1994) A&A 288,231ADSGoogle Scholar
  66. Scharmer, G.B. (1981) ApJ 249, 720ADSCrossRefGoogle Scholar
  67. Seaton, M.J., Yu Yan, Mihalas, D. and Pradhan, A.K. (1994) MNRAS 266, 805ADSGoogle Scholar
  68. Strassmeier, K.G. and Linsky, J.L. (1996) Stellar Surface Structure, Proc. IAU Symp. Vol. 176, Kluwer Academic Publ., p. 501Google Scholar
  69. Takeda, Y. (1992) PASJ 44, 649ADSGoogle Scholar
  70. Tsuji, T. (1991) A&A 245, 203ADSGoogle Scholar
  71. Tsuji, T., Ohnaka, K., Auki, W. (1996) A&A 30, 1Google Scholar
  72. van’t Veer-Menneret, C., and Megessier, C. (1996) A&A 309, 879ADSGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1997

Authors and Affiliations

  • Bengt Gustafsson
    • 1
  1. 1.Uppsala Astronomical ObservatoryUppsalaSweden

Personalised recommendations