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linemake generates formatted and curated atomic and molecular line lists suitable for spectral synthesis work. It is lightweight and easy-to-use. The code requires that the requested beginning and ending wavelengths not bridge the divide between two files of atomic line data; in such cases, run the code twice, once on either side of the divide, to generate the desired lists.
RRLFE generates and applies calibrations for retrieving [Fe/H] from low-res spectra of RR Lyrae variable stars. The code can generate a metallicity calibration anew, from real or synthetic spectra; it can also apply a metallicity calibration to low-resolution (R ~2000) RR Lyrae spectra spanning 3911 to 4950 angstroms.
LESSPayne performs semi-automatic analysis for echelle spectra of stars. It uses a neural network emulator to do a full spectrum fit to estimate stellar parameters and performs automatic continuum and equivalent width fits normalization with theoretical masks. The code uses MOOG (ascl:1202.009) for spectrum synthesis fitting, ATLAS model atmosphere interpolation, and equivalent width abundance determination. LESSPayne can also perform automatic abundance uncertainty analysis with error propagation and summary tables, and should be viewed as providing a high-quality initialization for an smhr file that reduces the time for a standard analysis.