articleThe Astrophysical Journal Supplement SeriesNov 4, 2014BRONZE OA

SOUTHERN MASSIVE STARS AT HIGH ANGULAR RESOLUTION: OBSERVATIONAL CAMPAIGN AND COMPANION DETECTION

HSH. SanaJLJ.-B. Le BouquinSLS. LacourJBJ.-P. BergerGDG. Duvert

Space Telescope Science Institute · Centre National de la Recherche Scientifique · +15 more institutions

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Abstract

Multiplicity is one of the most fundamental observable properties of massive O-type stars and offers a promising way to discriminate between massive star formation theories. Nevertheless, companions at separations between 1 and 100 milliarcsec (mas) remain mostly unknown due to intrinsic observational limitations. At a typical distance of 2 kpc, this corresponds to projected physical separations of 2-200 AU. The Southern MAssive Stars at High angular resolution survey (smash+) was designed to fill this gap by providing the first systematic interferometric survey of Galactic massive stars. We observed 117 O-type stars with VLTI/PIONIER and 162 O-type stars with NACO/ Sparse Aperture Masking (SAM), probing the…

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Authors

15
  • HS
    H. SanaCorresponding

    Space Telescope Science Institute

  • JL
    J.-B. Le Bouquin

    Centre National de la Recherche Scientifique, Institut de Planétologie et d'Astrophysique de Grenoble, Université Grenoble Alpes

  • SL
    S. Lacour

    Centre National de la Recherche Scientifique, Délégation Paris 7, Université Paris Cité, Observatoire de Paris, Sorbonne Université, Laboratoire d’études spatiales et d’instrumentation en astrophysique

  • JB
    J.-P. Berger

    European Southern Observatory

  • GD
    G. Duvert

    Centre National de la Recherche Scientifique, Institut de Planétologie et d'Astrophysique de Grenoble, Université Grenoble Alpes

Topics & keywords

Topics
Keywords
  • Stars
  • Brightness
  • Telescope
  • RADIUS
  • Angular diameter
  • Observable
  • Field of view
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