Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-25T14:50:15.276Z Has data issue: false hasContentIssue false
  • English
  • Français

New models for the convective flux in stellar atmospheres

Published online by Cambridge University Press:  25 May 2016

F. Kupka
F. Kupka*
Affiliation:
Institute for Astronomy, Univ. of Vienna, Türkenschanzstr. 17, A-1180 Vienna, Austria

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.

Over the past decades various forms of the mixing length theory (MLT) have been used to describe convection in stellar atmospheres. Recent advances in turbulence theory now allow for major improvements in modelling thermal convection. We review several models for convection which have been derived from turbulence theory, and describe one of them, the “CM model”, in detail. The CM model has been used in several stellar evolution and helioseismology codes during the last four years and has now been applied to model atmospheres. An overwiew comparing stellar atmosphere models based on the CM formulation with its MLT predecessors indicates improvements on model atmospheres for A and F stars.

Type
Session V: “Next Generation Model Atmospheres”
Information
Symposium - International Astronomical Union , Volume 176: Stellar Surface Structure , 1996 , pp. 557 - 564
Copyright
Copyright © Kluwer 1996 

References

Canuto, V.M. (1993), ApJ , 416, 331 CrossRefGoogle Scholar
Canuto, V.M. (1994), ApJ , 428, 729 CrossRefGoogle Scholar
Canuto, V.M. and Mazzitelli, I. (1991), ApJ , 370, 295 CrossRefGoogle Scholar
Canuto, V.M. and Mazzitelli, I. (1992), ApJ , 389, 724 CrossRefGoogle Scholar
Canuto, V.M. and Kupka, F. (1996), in preparation.Google Scholar
Edmonds, F.N. (1957), ApJ , 125, 535 CrossRefGoogle Scholar
Kupka, F., Ryabchikova, T.A., Mathys, G., Weiss, W.W., Kuschnig, R. and Rogl, J. (1995), A&A , in print Google Scholar
Kurucz, R.L. (1993), CDROM13: ATLAS9. SAO, Harvard, Cambridge.Google Scholar
Massaguer, J.M. (1990), Inside the Sun , ed. Berthomieu, G. and Cribier, M.. Oxford University Press, Oxford.Google Scholar
Neckel, H. and Labs, D. (1984), Solar Physics , 90, 205 CrossRefGoogle Scholar
Nordlund, Å and Dravins, D. (1990), A&A , 228, 155 Google Scholar
Stothers, R.B. and Chin, C.W. (1995), ApJ , 440, 297 CrossRefGoogle Scholar
Xie, X. and Toomre, J. (1993), ApJ , 405, 747 CrossRefGoogle Scholar
Xiong, D.R. (1985), A&A , 150, 133 Google Scholar
Yamaguchi, S. (1963), PASJ , 15, 412 Google Scholar