Darth Fader: Using wavelets to obtain accurate redshifts of spectra at very low signal-to-noise

  title={Darth Fader: Using wavelets to obtain accurate redshifts of spectra at very low signal-to-noise},
  author={Daniel Machado and Adrienne Leonard and J-L. Starck and Filipe B. Abdalla and Stephanie Jouvel},
  journal={Astronomy and Astrophysics},
Context. Accurate determination of the redshifts of galaxies comes from the identification of key lines in their spectra. Large sky surveys, and the sheer volume of data they produce, have made it necessary to tackle this identification problem in an automated and reliable fashion. Current methods attempt to do this with careful modelling of the spectral lines and the continua, or by employing a flux/magnitude or a signal-to-noise cut to the dataset in order to obtain reliable redshift… 
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