Discovery of an extraordinarily massive cluster of red supergiants

@article{Figer2006DiscoveryOA,
  title={Discovery of an extraordinarily massive cluster of red supergiants},
  author={D. Figer and J. MacKenty and M. Robberto and Kester W. Smith and F. Najarro and R. Kudritzki and A. Herrero},
  journal={The Astrophysical Journal},
  year={2006},
  volume={643},
  pages={1166-1179}
}
We report the discovery of an extraordinarily massive young cluster of stars in the Galaxy, having an inferred total initial cluster mass comparable to the most massive young clusters in the Galaxy. Using IRMOS, 2MASS, and Spitzer observations, we conclude that there are 14 red supergiants in the cluster, compared with five, in what was previously thought to be the richest Galactic cluster of such stars. We infer spectral types from near-infrared spectra that reveal deep CO bandhead absorption… Expand
The main sequence of three red supergiant clusters
A newly discovered young massive star cluster at the far end of the Galactic Bar
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