Hostname: page-component-78c5997874-ndw9j Total loading time: 0 Render date: 2024-11-06T03:55:14.133Z Has data issue: false hasContentIssue false
  • English
  • Français

Radiative Fluxes and Forces in Non-spherical Winds

Published online by Cambridge University Press:  12 April 2016

Rainer Wehrse  and
Guido Kanschat
Rainer Wehrse
Affiliation:
Institut f. Theoret. Astrophysik, Tiergartenstraße 15, D-69121 Heidelberg, Germany Interdisziplinäres Zentrum f. Wissenschaftliches Rechnen, Im Neuenheimer Feld 368, D 69120 Heidelberg, Germany
Guido Kanschat
Affiliation:
Institut f. Angewandte Mathematik, Im Neuenheimer Feld 294, D-69120 Heidelberg, Germany Interdisziplinäres Zentrum f. Wissenschaftliches Rechnen, Im Neuenheimer Feld 368, D 69120 Heidelberg, Germany

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.

For the modelling of the radiation fields in stellar winds and the resulting forces new efficient algorithms are presented. In the first one, the radiative transfer equation for moving 3D media is solved analytically with the assumption that the source function is known, eg. from the solution of the NLTE rate equations. For a wind with inhomogeneities an a-posteriori error controlled finite element code is described that takes scattering explicitly into account. Finally, we present possibilities for the accurate inclusion of an arbitrary number of spectral lines in a deterministic and in a stochastic way.

Type
Section II Theory of Non-spherical Winds
Information
International Astronomical Union Colloquium , Volume 169: Variable and Non-spherical Stellar Winds in Luminous Hot Stars , 1999 , pp. 144 - 150
Copyright
Copyright © Springer-Verlag 1999

References

Baschek, B., Efimov, G.V., v. Waldenfels, W., Wehrse, (1997a):Astron. Astrophys. 317 630 Google Scholar
Baschek, B., Grüber, C., v. Waldenfels, W., Wehrse, (1997b): Astron. Astrophys. 320 920 Google Scholar
Castor, J.I., Abbott, D.C., Klein, R.I.: (1975) Astrophys. J. 195 157 Google Scholar
Kalkofen, W. (1987): Numerical Radiative Transfer (Cambridge University Press)Google Scholar
Kanschat, G. (1996): PhD thesis, Universität Heidelberg Google Scholar
Lucy, L.B., Solomon, P.M. (1970): Astrophys. J. 159, 879 Google Scholar
Oxenius, J. (1986): Kinetic Theory of Particles and Photons (Springer, Berlin, Heidelberg)CrossRefGoogle Scholar
Wehrse, R., v. Waldenfels, W., Baschek, B.: (1998) J. Quant. Spectrosc. Rad. Transf., in pressGoogle Scholar
Wehrse, R., Baschek, B.: (1998) Physics Reports, in pressGoogle Scholar
Wehrse, R., Müller, P.: (1998) in preparationGoogle Scholar