Numerical radiative transfer with state-of-the-art iterative methods made easy

Abstract

This article presents an on-line tool (rttools.irap.omp.eu) and its accompanying software ressources for the numerical solution of basic radiation transfer out of local thermodynamic equilibrium (LTE). State-of-the-art stationary iterative methods such as Accelerated $\Lambda$-Iteration and Gauss-Seidel schemes, using a short characteristics-based formal solver are used. We also comment on typical numerical experiments associated to the basic non-LTE radiation problem. These ressources are intended for the largest use and benefit, in support to more classical radiation transfer lectures usually given at the Master level.

8 pages, 5 figures, accepted for Eur. J. Phys. - see also (and use!) http://rttools.irap.omp.eu

References in corpus (1)

• A new nonlocal thermodynamical equilibrium radiative transfer method for cool stars

Cited by in corpus (4)

• Numerical solutions to linear transfer problems of polarized radiation I. Algebraic formulation and stationary iterative methods
• Full non-LTE spectral line formation I. Setting the stage
• Full non-LTE spectral line formation II. Two-distribution radiation transfer with coherent scattering in the atom's frame
• Full non-LTE spectral line formation III. The case of a two-level atom with broadened upper level