NOAO Fundamental Plane Survey. II. Age and Metallicity along the Red Sequence from Line-Strength Data

@article{Nelan2005NOAOFP,
  title={NOAO Fundamental Plane Survey. II. Age and Metallicity along the Red Sequence from Line-Strength Data},
  author={Jenica E. Nelan and Russell J. Smith and Michael J Hudson and Gary. A. Wegner and John R Lucey and Stephen A. W. Moore and Stephen J. Quinney and Nicholas B. Suntzeff},
  journal={The Astrophysical Journal},
  year={2005},
  volume={632},
  pages={137-156}
}
We present spectroscopic line-strength data for 4097 red-sequence galaxies in 93 low-redshift galaxy clusters and use these to investigate variations in average stellar populations as a function of galaxy mass. Our analysis includes an improved treatment of nebular emission contamination, which affects ~10% of the sample galaxies. Using the stellar population models of D. Thomas and collaborators, we simultaneously fit 12 observed line-strength-σ relations in terms of common underlying trends… Expand
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