Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-28T23:09:26.407Z Has data issue: false hasContentIssue false
  • English
  • Français

Progress on model atmospheres and line data

Published online by Cambridge University Press:  25 May 2016

Robert L. Kurucz
Robert L. Kurucz*
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138, USA

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

I discuss errors in theory and in interpreting observations that are produced by the failure to consider resolution in space, time, and energy. I discuss convection in stellar model atmospheres and in stars. One dimensional convective models can never work well, but the errors in predicted diagnostics for temperature, gravity, and abundances can be calibrated. I discuss the variation of microturbulent velocity with depth, effective temperature, and gravity. These variations must be dealt with in computing models and grids and in any type of photometric calibration. I describe the state of the art in computing a model atmosphere and complete spectrum for stars with arbitrary abundances. I have made no significant progress on atomic or molecular line data for the last two years, but I will soon begin large scale production. I will continue to distribute the results on CD-ROMs, and I will make them available on the World Wide Web.

Type
Stellar Atmospheres
Information
Symposium - International Astronomical Union , Volume 189: Fundamental Stellar Properties: The Interaction Between Observation and Theory , 1997 , pp. 217 - 226
Copyright
Copyright © Kluwer 1997 

References

Ayres, T.R. and Testerman, L. 1981, ApJ 245, 1124–1140.Google Scholar
Bikmaev, I. 1994, personal communication.Google Scholar
Blackwell, D.E., Lynas-Gray, A.E., and Smith, G. 1995, A&A, 296, 217.Google Scholar
Castelli, F. & Kurucz, R. L. (1994) A&A 281, 817–832.Google Scholar
Chan, K.L., Nordlund, Å, Steffen, M., Stein, R.F. (1991) Solar Interior and Atmosphere , Cox, A. N., Livingston, W.C., and Matthews, M., eds. (Tucson: U. of Arizona Press) 223–274.Google Scholar
Kurucz, R. L. (1993a) Atomic data for opacity calculations. Kurucz CD-ROM No. 1.Google Scholar
Kurucz, R. L. (1993b) in Peculiar versus Normal Phenomena in A-type and Related Stars , Dworetsky, M. M., Castelli, F., and Faraggiana, R., eds., A.S.P. Conference Series, 87–97.Google Scholar
Kurucz, R. L. (1993c) ATLAS9 Stellar Atmosphere Programs and 2 km/s grid. Kurucz CD-ROM No. 13.Google Scholar
Kurucz, R. L. (1993d) Diatomic Molecular Data for Opacity Calculations. Kurucz CD-ROM No. 15.Google Scholar
Kurucz, R. L. (1994) in Molecules in the Stellar Environment, J⊘rgensen, U. G., ed., Springer-Verlag, Berlin, 282–295.Google Scholar
Kurucz, R. L. (1995a) in Highlights of Astronomy , Vol. 10, Appenzeller, I., ed., 407–409.Google Scholar
Kurucz, R. L. (1995b) Ap.J., 452, 102–108.Google Scholar
Kurucz, R. L. (1996a) in ASP Conf. Series Vol. 108, Model Atmospheres and Stellar Spectra (ed. Adelman, S., Kupka, F., and Weiss, W.W.) pp. 2–18.Google Scholar
Kurucz, R. L. (1996b) in ASP Conf. Series Vol. 108, Model Atmospheres and Stellar Spectra (ed. Adelman, S., Kupka, F., and Weiss, W.W.) pp. 160–164.Google Scholar
Kurucz, R.L. and Bell, B. (1984) Atomic Line Data Kurucz CD-ROM No. 23.Google Scholar
Kurucz, R.L., Furenlid, I., Brault, J., and Testerman, L. (1984) Solar Flux Atlas from 296 to 1300 nm, (Sunspot, N.M.: National Solar Observatory)Google Scholar
Nordlund, Å. and Dravins, D. (1990) A&A 228, 155.Google Scholar
Short, C.I. and Lester, J.B. (1994) ApJ 436, L365.CrossRefGoogle Scholar
Topka, K.P. and Title, A.M. (1991) in Solar Interior and Atmosphere , Cox, A.N., Livingston, W.C., and Matthews, M., eds. (Tucson: U. of Arizona Press) 727–747.Google Scholar