A Lensing View On The Fundamental Plane

  title={A Lensing View On The Fundamental Plane},
  author={D. Leier},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
  • D. Leier
  • Published 2009
  • Physics
  • arXiv: Cosmology and Nongalactic Astrophysics
  • For lensing galaxies we introduce a formal velocity dispersion sigma_lens, based on enclosed mass and the virial theorem. This is calculated from an ensemble of pixelated lens models, and found to be fairly model independent. A sample of 18 well-known early-type lensing galaxies and two clusters is found to be consistent with the equality of sigma_lens and the kinematic velocity dispersion sigma_obs. Both the early-type lensing galaxies and the clusters can thus be determined as being… CONTINUE READING
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