Fast multilevel radiative transfer

Details Fast multilevel radiative transfer Fast multilevel radiative transfer

Jan 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jqsrt.103...57p&link_type=abstract

Journal of Quantitative Spectroscopy & Radiative Transfer, v. 103, iss. 1, p. 57-66.

Astronomy and Astrophysics

Astrophysics

8

Radiative Transfer, Non-Lte Plasmas, Astrophysics

Scientific paper

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.

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