Massive Stars in the SGR 1806-20 Cluster

@article{Figer2005MassiveSI,
  title={Massive Stars in the SGR 1806-20 Cluster},
  author={D. Figer and F. Najarro and T. Geballe and R. Blum and R. Kudritzki},
  journal={The Astrophysical Journal},
  year={2005},
  volume={622}
}
  • D. Figer, F. Najarro, +2 authors R. Kudritzki
  • Published 2005
  • Physics
  • The Astrophysical Journal
  • We report the discovery of additional hot and massive stars in the cluster surrounding the soft gamma repeater SGR 1806-20, based on United Kingdom Infrared Telescope and Keck near-infrared spectroscopy. Of the newly identified stars, three are Wolf-Rayet stars of types WC8, WN6, and WN7, and a fourth star is an OB supergiant. These three stars, along with four previously discovered, imply a cluster age of ~3.0-4.5 Myr, on the basis of the presence of WC stars and the absence of red supergiants… CONTINUE READING
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