Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-LTE radiative transfer in cool stars. Theory and applications to the
  abundance analysis for 24 chemical elements   The interpretation of observed spectra of stars in terms of fundamental
stellar properties is a key problem in astrophysics. For FGK-type stars, the
radiative transfer models are often computed using the assumption of local
thermodynamic equilibrium (LTE). Its validity is often questionable and needs
to be supported by detailed studies, which build upon the consistent framework
of non-LTE. In this review, we outline the theory of non-LTE. The processes
causing departures from LTE are introduced qualitatively by their physical
interpretation, as well as quantitatively by their impact on the models of
stellar spectra and element abundances. We also compile and analyse the most
recent results from the literature. In particular, we examine the non-LTE
effects for 24 chemical elements for six late-studied FGK-type stars.

1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg