Optical spectral classification of southern ultraluminous infrared galaxies

@article{Lee2011OpticalSC,
  title={Optical spectral classification of southern ultraluminous infrared galaxies},
  author={Jong Chul Lee and Ho Seong Hwang and Myung Gyoon Lee and Minjin Kim and Sang Chul Kim},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2011},
  volume={414},
  pages={702-712}
}
We present a study of the optical spectral properties of 115 ultraluminous infrared galaxies (ULIRGs) in the southern sky. Using the optical spectra obtained at the Cerro Tololo Inter-American Observatory (CTIO) 4 -m telescope and provided by the Two-degree Field (2dF) Galaxy Redshift Survey and the Six-degree Field (6dF) Galaxy Survey, we measure emission linewidths and fluxes for spectral classification. We determine the spectral types of ULIRGs with Hα measurement using the standard… 

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