THE INITIAL MASS FUNCTION OF EARLY-TYPE GALAXIES

@article{Treu2010THEIM,
  title={THE INITIAL MASS FUNCTION OF EARLY-TYPE GALAXIES},
  author={Tommaso Treu and Matthew W. Auger and L{\'e}on V. E. Koopmans and Raphael Gavazzi and Philip J. Marshall and Adam S. Bolton},
  journal={The Astrophysical Journal},
  year={2010},
  volume={709},
  pages={1195 - 1202}
}
We determine an absolute calibration of the initial mass function (IMF) of early-type galaxies, by studying a sample of 56 gravitational lenses identified by the Sloan Lenses ACS Survey. Under the assumption of standard Navarro, Frenk, and White dark matter halos, a combination of lensing, dynamical, and stellar population synthesis models is used to disentangle the stellar and dark matter contribution for each lens. We define an “IMF mismatch” parameter α≡MLD*,Ein/MSPS*,Ein as the ratio of… 
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