Projected central dark matter fractions and densities in massive early-type galaxies from the Sloan Digital Sky Survey

@article{Grillo2010ProjectedCD,
  title={Projected central dark matter fractions and densities in massive early-type galaxies from the Sloan Digital Sky Survey},
  author={Claudio Grillo},
  journal={The Astrophysical Journal},
  year={2010},
  volume={722},
  pages={779-787}
}
  • C. Grillo
  • Published 11 September 2010
  • Physics
  • The Astrophysical Journal
We investigate in massive early-type galaxies the variation of their two-dimensional central fraction of dark over total mass and dark matter density as a function of stellar mass, central stellar velocity dispersion, effective radius, and central surface stellar mass density. We use a sample of approximately 1.7 × 105 galaxies from the Sloan Digital Sky Survey Data Release Seven (SDSS DR7) at redshift smaller than 0.33. We apply conservative photometric and spectroscopic cuts on the SDSS DR7… Expand

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