Hostname: page-component-857557d7f7-s7d9s Total loading time: 0 Render date: 2025-12-02T23:20:15.502Z Has data issue: false hasContentIssue false
  • English
  • Français

Mass-to-light ratios of ellipticals in ΛCDM

Published online by Cambridge University Press:  19 May 2006

G.A. Mamon ,
F. Combes ,
C. Deffayet ,
B. Fort  and
N.R. Napolitano
N.R. Napolitano
Affiliation:
INAF-Observatory of Capodimonte, Naples, Italy
Get access

Abstract

We use the mass-to-light gradients in early-type galaxies to infer the global dark matter fraction, fd = Md/M*, for these systems. We discuss implications about the total star formation efficiency in dark-matter halos and show that the the trend of fd with mass produces virial mass-to-light ratios which are consistent semi-analitical models. Preliminary kurtosis analysis of the quasi-constant M/L galaxies in Romanowsky et al. seems at odd with Dekel et al. simulations.

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable