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Turbospectrum is a 1D LTE spectrum synthesis code which covers 600 molecules, is fast with many lines, and uses the treatment of line broadening described by Barklem & O’Mara (1998).
An updated NLTE version of Turbospectrum, Turbospectrum_NLTE (ascl:2504.012), is available.
Turbospectrum_NLTE updates the spectral synthesis code Turbospectrum (ascl:1205.004) with NLTE capabilities. The code takes a 1D model atmosphere, one or several line lists, and computes the emergent spectrum (flux and/or intensities at various angles), with a prescribed chemical composition. Various parameters can be adjusted, such as microturbulence (vmicro), individual abundances, and isotopic ratios. Turbospectrum_NLTE can also handle the computation for a single chunk of spectrum with a constant wavelength step, or for a number of smaller windows, e.g., around lines of interest. Calculations can also be done for plane-parallel or spherically symmetric models.