The most massive stars in the Arches cluster

  title={The most massive stars in the Arches cluster},
  author={F. Martins and D. John Hillier and T. Paumard and Frank Eisenhauer and T. Ott and Reinhard Genzel},
  journal={Astronomy and Astrophysics},
Aims. We study a sample composed of 28 of the brightest stars in the Arches cluster. Our aim is to constrain their stellar and wind properties and to establish their nature and evolutionary status. Methods. We analyze K -band spectra obtained with the integral field spectrograph SINFONI on the VLT. Atmosphere models computed with the code CMFGEN are used to derive the effective temperatures, luminosities, stellar abundances, mass loss rates and wind terminal velocities. Results. We find that… Expand
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