THE DEEP 2 GALAXY REDSHIFT SURVEY : SPECTRAL CLASSIFICATION OF GALAXIES AT Z ∼ 1

@inproceedings{Madgwick2008THED2,
  title={THE DEEP 2 GALAXY REDSHIFT SURVEY : SPECTRAL CLASSIFICATION OF GALAXIES AT Z ∼ 1},
  author={Darren Stewart. Madgwick and Alison L. Coil and Christopher. J. Conselice and Michael Caldwell Cooper and Marc Davis and Richard and Stephen Ellis and Sandra M. Faber and Douglas P. Finkbeiner and Brian Francis Gerke and Puragra Guhathakurta and Nick Kaiser and David C. Koo and Jeffrey Allen Newman and Andrew C. Phillips and Charles Colville Steidel and Benjamin J. Weiner and Christopher N. A. Willmer and Renbin Yan},
  year={2008}
}
We present a Principal Component Analysis (PCA)-based spectral classification, η, for the first 5600 galaxies observed in the DEEP2 Redshift Survey. This parameter provides a very pronounced separation between absorption and emission dominated galaxy spectra – corresponding to passively evolving and actively star-forming galaxies in the survey respectively. In addition it is shown that despite the high resolution of the observed spectra, this parameter alone can be used to quite accurately… CONTINUE READING

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Wide Field Surveys in Cosmology

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