A near-infrared interferometric survey of debris disk stars. I. Probing the hot dust content aroun

  title={A near-infrared interferometric survey of debris disk stars. I. Probing the hot dust content aroun},
  author={Emmanuel di Folco and Olivier Absil and J. Ch. Augereau and Antoine M'erand and Vincent Coud'e du Foresto and Fr'ed'eric Th'evenin and Denis Defr{\`e}re and Pierre Kervella and Theo A. ten Brummelaar and Harold A. Mcalister and Stephen T. Ridgway and Judit Sturmann and Laszlo Sturmann and N. Guseva Observatoire de Geneve and Laboratoire d'Astrophysique de l'Observatoire de Grenoble Umr 5571 and Center for High Angular Resolution Astronomy Georgia Stat University and Lesia Observatoire de Paris-Meudon and L. Prockter Observatoire de la Cote d'Azur and Institute d'Astrophysique de Paris Warsaw University Observatory},
  journal={Astronomy and Astrophysics},
Context. The quest for hot dust in the central region of debris disks re quires high resolution and high dynamic range imaging. Nearinfrared interferometry is a powerful means to directly det ect faint emission from hot grains. Aims. We probed the first 3 AU aroundτ Ceti andǫ Eridani with the CHARA array (Mt Wilson, USA) in order to gauge the 2� m excess flux emanating from possible hot dust grains in the debris dis ks and to also resolve the stellar photospheres. Methods. High precision… Expand

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