A spectroscopic survey of dwarf galaxies in the Coma cluster: stellar populations, environment and downsizing

  title={A spectroscopic survey of dwarf galaxies in the Coma cluster: stellar populations, environment and downsizing},
  author={Russell J Smith and John R Lucey and Michael J. Hudson and Steven P. Allanson and Terry James Bridges and A. E. Hornschemeier and Ronald O. Marzke and Neil A. Miller},
  journal={Monthly Notices of the Royal Astronomical Society},
We investigate the stellar populations in a sample of 89 faint red galaxies in the Coma cluster, using high signal-to-noise ratio (S/N) spectroscopy from the 6.5-m MMT. Our sample is drawn from two 1° fields, one centred on the cluster core and the other located 1° to the south-west of the cluster centre. The target galaxies are mostly 2–4 mag fainter than M*; galaxies with these luminosities have been previously studied only using small samples, or at low S/N. For a comparison sample we use… 
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