Jacobian-free Newton-Krylov method for multilevel nonlocal thermal equilibrium radiative transfer problems

Open Access

Table 1

Summary of the different atom setups.

Configuration	Lines wavelength (Å)	Frequency points
Ca II (2 levels + continuum)	3934	100
Ca II (5 levels + continuum)	3934–3968–8498–8542–8662	100–100–40–40–80
HI (5 levels + continuum)	Ly(α, β, γ, δ) Bn(α, β, γ) Pa(α, β) Brα	(150,50,20,20), (70,40,40), (20,20), 20

Notes. The lines of each setup are indicated as well as the number of frequency points used per line. The Can setup consists of the K line (three-level) and the H, K as well as the IR triplet lines (six-level). The HI setup consists of a set of Lyman, Balmer, Paschen, and Brackett lines.

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