Full non-LTE spectral line formation I. Setting the stage

Abstract

Radiative transfer out of local thermodynamic equilibrium (LTE) has been increasingly adressed, mostly numerically, for about six decades now. However the standard non-LTE problem most often refers to the only deviation of the distribution of photons from their equilibrium i.e., Planckian, distribution. Hereafter we revisit after Oxenius (1986) the so-called "full non-LTE" problem, which considers to couple and therefore to solve self-consistently for deviations from equilibrium distributions of photons as well as for massive particles constituting the atmospheric plasma.

arXiv comment9 pages, 4 figures

References in corpus (5)

• Monte Carlo Radiative Transfer
• Quiet-Sun hydrogen Lyman-alpha line profile derived from SOHO/SUMER solar-disk observations
• Numerical radiative transfer with state-of-the-art iterative methods made easy
• An adaptive gaussian quadrature for the Voigt function
• Theoretical formulation of Doppler redistribution in scattering polarization within the framework of the velocity-space density matrix formalism

Cited by in corpus (4)

• Radiance Cascades: A Novel High-Resolution Formal Solution for Multidimensional Non-LTE Radiative Transfer
• 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
• Full non-LTE multi-level radiative transfer I. An atom with three bound infinitely sharp levels