Astrophysics Source Code Library

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Searching for codes credited to 'Machado, D. P'

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[ascl:1402.027] Darth Fader: Galaxy catalog cleaning method for redshift estimation

Darth Fader is a wavelet-based method for extracting spectral features from very noisy spectra. Spectra for which a reliable redshift cannot be measured are identified and removed from the input data set automatically, resulting in a clean catalogue that gives an extremely low rate of catastrophic failures even when the spectra have a very low S/N. This technique may offer a significant boost in the number of faint galaxies with accurately determined redshifts.