Near-Infrared Properties of Galaxy Clusters: Luminosity as a Binding Mass Predictor and the State of Cluster Baryons

@article{Lin2003NearInfraredPO,
  title={Near-Infrared Properties of Galaxy Clusters: Luminosity as a Binding Mass Predictor and the State of Cluster Baryons},
  author={Yen-Ting Lin and Joseph J. Mohr and Spencer Adam Stanford},
  journal={The Astrophysical Journal},
  year={2003},
  volume={591},
  pages={749-763}
}
We explore the near-infrared properties of galaxies within 27 galaxy clusters using data from the Two Micron All Sky Survey (2MASS). For a subsample of 13 clusters with available X-ray imaging data, we examine the properties of both the galaxies and the intracluster medium. We show that the K-band luminosity is correlated with cluster mass, providing a binding mass estimate accurate to 45%. The mass-to-light ratio in our ensemble increases by a factor of ~2 over the cluster mass range (1014… 

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