Journal of The Korean Astronomical Society (천문학회지)

The Korean Astronomical Society (한국천문학회)
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THE ENVIRONMENTAL DEPENDENCE OF THE FRACTION OF 'UNCONVENTIONAL' GALAXIES: FAINT RED AND LUMINOUS BLUE

  • Deng, Xin-Fa (School of Science, Nanchang University) ;
  • Zhang, Fuyang (School of Information Engineering, Nanchang University) ;
  • Song, Jun (School of Science, Nanchang University) ;
  • Chen, Yi-Qing (School of Science, Nanchang University) ;
  • Jiang, Peng (School of Science, Nanchang University)
  • Received : 2012.03.16
  • Accepted : 2012.05.18
  • Published : 2012.06.30
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Abstract

Using the volume-limited Main galaxy sample constructed from the Sloan Digital Sky Survey Data Release 7 (SDSS DR7), we explore the environmental dependence of the fraction of 'unconventional' galaxies: luminous blue and faint red. It is found that the fraction of faint red increases apparently with increasing local density, and the fraction of luminous blue declines substantially with increasing local density, which shows that there is an environmental dependence for color beyond that for luminosity.

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References

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