The Dark Matter Content of Early-Type Galaxies in the ACS Virgo Cluster Survey - Observatoire de Paris Access content directly
Other Publications NOAO Proposal ID 2008A-0186 Year : 2008

The Dark Matter Content of Early-Type Galaxies in the ACS Virgo Cluster Survey

Eric Peng
  • Function : Author
Dean Mclaughlin
  • Function : Author
Andres Jordan
  • Function : Author
Gelys Trancho
  • Function : Author
Marianne Takamiya
  • Function : Author
John Blakeslee
  • Function : Author
Patrick Cote
  • Function : Author
Rupali Chandar
  • Function : Author
Laura Ferrarese
  • Function : Author
Paul Goudfrooij
  • Function : Author
Markus Kissler-Patig
  • Function : Author
Simona Mei
  • Function : Author
Thomas Puzia
  • Function : Author
Michael West
  • Function : Author

Abstract

The total mass of a galaxy is a fundamental parameter that drives galaxy evolution. However, the nature of dark matter in early-type galaxies is still very much under debate. Because early-type galaxies do not have large scale HI disks, dynamical masses are often measured using discrete tracers such as globular clusters (GCs) or planetary nebulae, or hot X-ray gas. While some massive ellipticals have high mass-to-light ratios, other intermediate-luminosity ellipticals appear to require little or no dark matter. Current sample sizes for these studies are on the order of a few, and the galaxies studied are in very different environments. We propose to use Gemini/GMOS-N to measure radial velocities of GCs and measure dynamical masses of four sub-L* early-type galaxies in the interesting but unexplored luminosity range -20.5
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Dates and versions

obspm-03857210 , version 1 (17-11-2022)

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Eric Peng, Dean Mclaughlin, Andres Jordan, Gelys Trancho, Marianne Takamiya, et al.. The Dark Matter Content of Early-Type Galaxies in the ACS Virgo Cluster Survey. 2008, pp.186. ⟨obspm-03857210⟩

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