Stellar Populations in the Outer Halo of the Massive Elliptical M49

@article{Mihos2013StellarPI,
  title={Stellar Populations in the Outer Halo of the Massive Elliptical M49},
  author={Chris Mihos and Paul Harding and Craig S. Rudick and John Feldmeier},
  journal={The Astrophysical Journal},
  year={2013},
  volume={764}
}
  • Chris Mihos, Paul Harding, +1 author John Feldmeier
  • Published 2013
  • Physics
  • The Astrophysical Journal
  • We use deep surface photometry of the giant elliptical M49 (NGC 4472), obtained as part of our survey for diffuse light in the Virgo Cluster, to study the stellar populations in its outer halo. Our data trace M49's stellar halo out to {approx}100 kpc (7r{sub e}), where we find that the shallow color gradient seen in the inner regions becomes dramatically steeper. The outer regions of the galaxy are quite blue (B - V {approx} 0.7); if this is purely a metallicity effect, it argues for extremely… CONTINUE READING

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