Full non-lte spectral line formation – ii. two-distribution radiation transfer with coherent scattering in the atom’s frame

HIGHLIGHTS

SUMMARY

    Oxenius formulated the so-called full nonlocal thermodynamic equilibrium (non-LTE) radiation transfer problem, wherein the distribution of photons as well as the massive particles in a stellar atmosphere may both generally deviate from their equilibrium distributions. The validation of these new elements, dealing directly with the coupling of the frequency dependence of the radiation and the velocities of the atoms scattering light, is first made for the case of coherent scattering "in the atom`s frame". The authors can indeed show (see Sect 3) that the latter assumption for the twodistribution problem makes . . .

     

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