K-corrections and filter transformations in the ultraviolet, optical, and near infrared

  title={K-corrections and filter transformations in the ultraviolet, optical, and near infrared},
  author={Michael R. Blanton and Sam T. Roweis},
  journal={The Astronomical Journal},
Template fits to observed galaxy fluxes allow calculation of K-corrections and conversions among observations of galaxies at various wavelengths. We present a method for creating model-based template sets given a set of heterogeneous photometric and spectroscopic galaxy data. Our technique, nonnegative matrix factorization, is akin to principal component analysis (PCA), except that it is constrained to produce nonnegative templates, it can use a basis set of models (rather than the delta… Expand

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