FIREFLY is a chi-squared minimisation full fitting code for deriving stellar population properties from spectra. It fits combinations of single-burst stellar population models using the Bayesian Information Criterion and returns light- and mass-weighted ages, metallicities, dust attenuation, stellar mass, and star formation histories.
python manga astrophysics galaxies spectra spectroscopy spectral-analysis spectral-data sdss desi stellar-populations astromomy stellar-population-properties spectral-fitting full-spectral-fitting galaxy-spectra
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Updated
Mar 2, 2026 - Python