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Journal Articles Journal of Quantitative Spectroscopy and Radiative Transfer Year : 2007

Fast multilevel radiative transfer

Abstract

The vast majority of recent advances in the field of numerical radiative transfer relies on approximate operator methods better known in astrophysics as Accelerated Lambda-Iteration (ALI). A superior class of iterative schemes, in term of rates of convergence, such as Gauss-Seidel and Successive Overrelaxation methods were therefore quite naturally introduced in the field of radiative transfer by Trujillo Bueno & Fabiani Bendicho (1995); it was thoroughly described for the non-LTE two-level atom case. We describe hereafter in details how such methods can be generalized when dealing with non-LTE unpolarised radiation transfer with multilevel atomic models, in monodimensional geometry.

Dates and versions

hal-00087890 , version 1 (27-07-2006)

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F. Paletou, L. Léger. Fast multilevel radiative transfer. Journal of Quantitative Spectroscopy and Radiative Transfer, 2007, 103, pp.57-66. ⟨10.1016/j.jqsrt.2006.07.003⟩. ⟨hal-00087890⟩
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