GCIRS 7, a pulsating M1 supergiant at the Galactic centre - Physical properties and age

@article{Paumard2014GCIRS7A,
  title={GCIRS 7, a pulsating M1 supergiant at the Galactic centre - Physical properties and age},
  author={T. Paumard and Oliver Pfuhl and F. Martins and Pierre Kervella and Thomas Ott and J. U. Pott and J.-B. Le Bouquin and Joanne Breitfelder and Stefan Gillessen and Guy Perrin and Leonard Burtscher and X. Haubois and Wolfgang Brandner},
  journal={Astronomy and Astrophysics},
  year={2014},
  volume={568}
}
Context. The stellar population in the central parsec of the Galaxy is dominated in mass and number by an old (several Gyr) population, but young (6 2 Myr), massive stars dominate the luminosity function. The most luminous of these stars is an M1 supergiant, GCIRS 7. Aims. We have studied GCIRS 7 in order to constrain the age of the recent star formation event in the Galactic centre and to characterise it as a visibility and phase reference for observations of the Galactic centre with the… 

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