Paper:	Software for NLTE Spectrum Fitting
Volume:	518, Physics of Magnetic Stars
Page:	247
Authors:	Tsymbal, V.; Ryabchikova, T.; Sitnova, T.
Abstract:	We present a software package for fine abundance analysis based on NLTE line profile fitting to the observed spectrum. The SYNTHV code for spectrum synthesis in LTE assumption is modified to compute NLTE spectra via loading the precalculated departure coefficients for atomic levels of investigated species. The departure coefficients, calculated for each level in a given model atom and a given model atmosphere, can be applied for NLTE spectral synthesis of any atomic transition between these levels by identifying them in an input linelist extracted from the Vienna Atomic Line Database (VALD) in the 'Long format' mode. SYNTHV_NLTE is implemented in the IDL visualization code \textsc{BINMAG6} (Kochukhov 2018), which returns the best fit synthetic spectrum and the NLTE abundance for a given spectral line.

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