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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

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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

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